INNOVATIVE TUTORIALS

JAVA PROGRAM TO CHECK STRING PALINDROME

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Jdk 1.6,   Netbeans IDE</span></span> <br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;"><br /></span></span>
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Hardware: Intel Core

i3, 4 GB RAM, 500 GB HDD</span></span></div>
<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<br />
<br />
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
</div>
<div style="background: #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Source

Code</span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">@Author: Praveen

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.util.*;<br />public class StringPalindrome {<br />    public static void main(String[] args) <br />    {<br />        Scanner sn=new Scanner(System.in);<br />        System.out.println("Enter any string: ");<br />        String str=sn.next();<br />        StringBuffer sb = new StringBuffer(str);<br />            sb.reverse();<br />    <br />        if(str.equals(sb.toString()))<br />            System.out.println("The given string "+str+" is a palindrome");<br />        else<br />            System.out.println("The given string "+str+" is not a palindrome");<br /><br /><br />    }<br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output
</span></span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
 Enter any string: <br />
madam<br />
The given string madam is a palindrome<br />
<br />
 Enter any string: <br />
cat<br />
The given string cat is not a palindrome</div>
</div>

JAVA PROGRAM TO CHECK STRING PALINDROME

Program Statement: Write a JAVA program to check given string is palindrome or not. Tested on: Software: Windows 8, Jdk 1....

JAVA PROGRAM TO DEMONSTRATE RUNTIME POLYMORPHISM

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">abstract class Shape<br />{<br />    abstract void area();<br />}<br />class Rectangle extends Shape<br />{<br />    @Override<br />    void area()<br />    {<br />    int l=10,b=20;<br />    System.out.println("The area of rectangle is:"+l*b);<br />    }<br />}<br />class Square extends Shape<br />{<br />    void area()<br />    {<br />        int l=10;<br />        System.out.println("The area of square is:"+l*l);<br />    }<br />}<br />public class RuntimePolymorphism <br />{<br /><br />    /**<br />     * @param args the command line arguments<br />     */<br />    public static void main(String[] args) {<br />        // TODO code application logic here<br />    Shape s;<br />    Rectangle r=new Rectangle();<br />    Square s1=new Square();<br />    s=r;<br />    s.area();<br />    s=s1;<br />    s.area();<br />    <br />    }<br />    <br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output
</span></span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
The area of rectangle is:200<br />
The area of square is:100</div>
</div>

JAVA PROGRAM TO DEMONSTRATE RUNTIME POLYMORPHISM

Program Statement: Write a JAVA program to demonstrate runtime polymorphism. Tested on: Software: Windows 8, Jdk 1.6, N...

JAVA PROGRAM TO DEMONSTRATE SIMPLE JAVA APPLET

<div dir="ltr" style="text-align: left;" trbidi="on">
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<div style="text-align: left;">
<div class="separator" style="clear: both; text-align: center;">
</div>
<span style="font-family: "Trebuchet MS",sans- serif; font-size: xx-small;"><span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><b>Program Statement:</b> Develop an applet that displays a simple message.</span></span></span></div>
</div>
<div style="text-align: right;">
</div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRoLuAsSZzMw3Osvf37ttVQjX8a0OdQiAVMfjFhBI26glCHxw5DAGmCqEgyVE1ECQ5Z6xBh2sYq5S1vP3NCACPWyWV_mL7QbbeRR2rNegJVaVs_YpdfmhJvRvc7ichMrOrtkMdKnQP33s/s1600/JAVA_Program_Image.png" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRoLuAsSZzMw3Osvf37ttVQjX8a0OdQiAVMfjFhBI26glCHxw5DAGmCqEgyVE1ECQ5Z6xBh2sYq5S1vP3NCACPWyWV_mL7QbbeRR2rNegJVaVs_YpdfmhJvRvc7ichMrOrtkMdKnQP33s/s1600/JAVA_Program_Image.png" width="200" /></a></div>
<div style="background: #4e9cf4; border-radius: 30px; border: 1px solid red; padding: 10px; width: 300px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS", sans-serif;">Tested

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Code</span></span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">@Author: Praveen

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.applet.*;<br />import java.awt.*;<br />/*<applet code="SimpleApplet" width=500 height=500> </applet> */<br />public class SimpleApplet extends Applet<br />{<br />public void init()<br />{<br />    setForeground(Color.RED);<br />    setBackground(Color.BLUE);<br />}<br />    <br />public void paint(Graphics g)<br />{<br />    Font f=new Font("Arial",Font.ITALIC,20);<br />    g.setFont(f);<br />    g.drawString("Welcome to Applet Programming!",50,50);<br />}     <br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output  </span></span></span></div>
<br />
<div>
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDJ4aUg40ovL_iB86MowS0D70cnnoH6xQ2jI0qsynYq0rCP6JQKGZiFSng_OOb3OvjAiJ6KzUhQVLyBLuB9bQ8dc9069IK5pVkeM_GHW3SU0MZc31c7qg_ynUy5EdccSzbHBBwuR3XLNA/s1600/simpleapplet.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhDJ4aUg40ovL_iB86MowS0D70cnnoH6xQ2jI0qsynYq0rCP6JQKGZiFSng_OOb3OvjAiJ6KzUhQVLyBLuB9bQ8dc9069IK5pVkeM_GHW3SU0MZc31c7qg_ynUy5EdccSzbHBBwuR3XLNA/s320/simpleapplet.PNG" /></a></div>
</div>
</div>

JAVA PROGRAM TO DEMONSTRATE SIMPLE JAVA APPLET

Program Statement: Develop an applet that displays a simple message. Tested on: Software: Windows 8, Jdk 1.6, Netbeans...

JAVA APPLET PROGRAM TO SIMULATE TRAFFIC LIGHTS

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.applet.*;<br />import java.awt.*;<br />import java.awt.event.*;<br />/* <applet code="TrafficLights" width=500 height=500> </applet> */<br />public class TrafficLights extends Applet implements ItemListener<br />{<br />    CheckboxGroup cbg;<br />    Checkbox r,g1,y;<br />    public void init()<br />    {<br />        cbg=new CheckboxGroup();<br />        r=new Checkbox("Red",cbg,false);<br />        g1=new Checkbox("Green",cbg,false);<br />        y=new Checkbox("Yellow",cbg,false);<br />        r.addItemListener(this);<br />        g1.addItemListener(this);<br />        y.addItemListener(this);<br />        add(r);<br />        add(g1);<br />        add(y);<br />    }<br />    public void itemStateChanged(ItemEvent ie)<br />    {<br />        repaint();<br />    }<br />    public void paint(Graphics g)<br />    {<br />        if(cbg.getSelectedCheckbox()==r)<br />        {<br />            g.setColor(Color.red);<br />            g.fillOval(150, 125,70,70);<br />        }<br />        if(cbg.getSelectedCheckbox()==g1)<br />        {<br />            g.setColor(Color.green);<br />            g.fillOval(150, 125,70,70);<br />        }<br />        if(cbg.getSelectedCheckbox()==y)<br />        {<br />            g.setColor(Color.yellow);<br />            g.fillOval(150, 125,70,70);<br />        }<br />    }<br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output
</span></span></span></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwbsk2UlpxcILMATCeQ37Wr_Nf5WM6lZKFhp3hCPrHd_QexxwQwMyP90n9ScTjcLmUxQYiJeoCtGbnQAVhBsYgyG21JPfcHGYzknGH30sSrsrhvf0evfAV7BnQU3TLkkgrqaP5WM6C_CI/s1600/appletred.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="246" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgwbsk2UlpxcILMATCeQ37Wr_Nf5WM6lZKFhp3hCPrHd_QexxwQwMyP90n9ScTjcLmUxQYiJeoCtGbnQAVhBsYgyG21JPfcHGYzknGH30sSrsrhvf0evfAV7BnQU3TLkkgrqaP5WM6C_CI/s1600/appletred.PNG" width="320" /></a></div>
<br /></div>

JAVA APPLET PROGRAM TO SIMULATE TRAFFIC LIGHTS

Program Statement: Write a JAVA program that simulates a traffic light. The program lets the user select one of the three lights: red, ye...

JAVA APPLET PROGRAM FOR HANDLING MOUSE EVENTS

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.applet.*;<br />import java.awt.event.*;<br />import java.awt.*;<br />public class MouseHandling extends Applet implements MouseListener, MouseMotionListener<br />{<br />    String msg="";<br />public void init()<br />{<br />    addMouseListener(this);<br />    addMouseListener(this);<br />    <br />}<br />public void mouseEntered(MouseEvent me)<br />{<br />    setBackground(Color.RED);<br />    msg="Mouse Entered";<br />    showStatus("Mouse Entered at:"+me.getX()+","+me.getY());<br />    repaint();<br />}<br />public void mouseExited(MouseEvent me)<br />{<br />    setBackground(Color.WHITE);<br />    msg="Mouse Exited";<br />    showStatus("Mouse Exited"+me.getX()+","+me.getY());<br />    repaint();<br />}<br />public void mouseDragged(MouseEvent me)<br />{<br /> setBackground(Color.RED);<br />    msg="Mouse Dragged";<br />    showStatus("Mouse Dragged at:"+me.getX()+","+me.getY());<br />    repaint();   <br />}<br />public void mousePressed(MouseEvent me)<br />{<br />   <br />}<br />public void mouseReleased(MouseEvent me)<br />{<br />    <br />}<br />public void mouseClicked(MouseEvent me)<br />{<br /> setBackground(Color.RED);<br />    msg="Mouse Clicked";<br />    showStatus("Mouse Clicked at:"+me.getX()+","+me.getY());<br />    repaint();     <br />}<br />public void mouseMoved(MouseEvent me)<br />{<br />    setBackground(Color.RED);<br />    msg="Mouse moved";<br />    showStatus("Mouse Moved at:"+me.getX()+","+me.getY());<br />    repaint();  <br />}<br />public void paint(Graphics g)<br />{<br />    g.drawString(msg,30,30);<br />}<br />   <br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output
</span></span></span></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6de_PvjAi8tkFbj1ElPxCnxnajN1a0sOTyiCTLJSMU4f8QmiXhd38WufhMutaORhuEeDrHYyeF9TEei3RI-5WXZrhj0XyZc6GRObaV_LFco_GnKnha3cVv3KcX9FNFedRMeXnDnEGWEE/s1600/mouseexit.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="246" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg6de_PvjAi8tkFbj1ElPxCnxnajN1a0sOTyiCTLJSMU4f8QmiXhd38WufhMutaORhuEeDrHYyeF9TEei3RI-5WXZrhj0XyZc6GRObaV_LFco_GnKnha3cVv3KcX9FNFedRMeXnDnEGWEE/s1600/mouseexit.PNG" width="320" /></a></div>
<br /></div>

JAVA APPLET PROGRAM FOR HANDLING MOUSE EVENTS

Program Statement: Write a JAVA applet program for handling Mouse Events. Tested on: Software: Windows 8, Jdk 1.6, Netbe...

JAVA PROGAM TO COMPUTE nxn MATRIX MULTIPLICATION

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.util.*;<br />class Multiplication<br />{<br />    int[][] mul(int x[][],int y[][],int z[][],int m,int n,int p,int q)<br />    {<br />    <br />    for(int r=0;r<m;r++)<br />        {    <br />    for(int c=0;c<n;c++)<br />            {<br />        z[r][c]=0;<br />        for(int k=0;k<p;k++)<br />            z[r][c]=z[r][c]+x[r][k]*y[k][c];<br />        <br />            }<br />        }<br /><br />     return z;<br />    }<br /><br /><br />}<br />class Matrixmul<br />{<br />    public static void main(String[] args) <br />    {<br />        System.out.println("\n Enter the number or rows and columns in matrix A:\n");<br />        Scanner sn=new Scanner(System.in);<br />        int m=sn.nextInt();<br />        int n=sn.nextInt();<br />        int result[][]=new int[m][n];<br />        int A[][]=new int[m][n];<br />        System.out.println("Enter elements into matrix A:\n");<br />        for(int r=0;r<m;r++)<br />        for(int c=0;c<n;c++)<br />        A[r][c]=sn.nextInt();<br />        System.out.println("Enter the number or rows and columns in matrix B:\n");<br />        int p=sn.nextInt();<br />        int q=sn.nextInt();<br />        int B[][]=new int[p][q];<br />        System.out.println(" Enter elements into matrix B:\n");<br />        for(int r=0;r<p;r++)<br />        for(int c=0;c<q;c++)<br />        B[r][c]=sn.nextInt();<br />        Multiplication obj=new Multiplication();<br />        if(n==p)<br />        {<br /><br />        obj.mul(A,B,result,m,n,p,q);<br />        for(int r=0;r<m;r++)<br />            {<br />        for(int c=0;c<n;c++)<br />                {<br />            System.out.print(result[r][c] +"\t");<br />                }<br />                System.out.print("\n");<br />            }<br />        }<br />            else<br />        System.out.println(" Matrix Multiplication Not Possible.");<br />        <br />    }<br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output
</span></span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
 Enter the number or rows and columns in matrix A:<br /><br />3 3<br />Enter elements into matrix A:<br /><br />1 2 3<br />4 5 6<br />7 8 9<br />Enter the number or rows and columns in matrix B:<br /><br />3 3<br /> Enter elements into matrix B:<br /><br />1 2 3<br />6 7 8<br />4 5 6</div>
<div style="background: #fff; border: 1px solid red; padding: 10px;">
<br />25    31    37   <br />58    73    88   <br />91    115    139    </div>
</div>

JAVA PROGAM TO COMPUTE nxn MATRIX MULTIPLICATION

Program Statement: Write a JAVA program to compute Matrix Multiplication. Tested on: Software: Windows 8, Jdk 1.6, Net...

JAVA APPLET PROGRAM TO HANDLE DIVIDE BY ZERO EXCEPTION

Jdk 1.6,   Netbeans IDE</span></span></span> <br />
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;"><span style="font-family: "Trebuchet MS",sans- serif;"><br /></span></span></span>
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;"><span style="font-family: "Trebuchet MS",sans- serif;">Hardware: Intel Core

i3, 4 GB RAM, 500 GB HDD</span></span></span></div>
<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<br />
<br />
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
</div>
<div style="background: #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Source

Kanwar </span></span></span><br />
<div class="separator" style="clear: both; text-align: center;">
</div>
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.applet.*;<br />import java.awt.*;<br />import java.awt.event.*;<br />/* <applet code="DivideDemo" width=500 height=500> </applet? */<br /><br />public class DivideDemo extends Applet implements ActionListener,TextListener<br />{<br />Label l1,l2,l3;<br />TextField t1,t2,t3;<br />Button b1;<br />int x,y; <br />float res=0;<br />public void init()<br />{<br />    l1=new Label("Num1:");<br />    l2=new Label("Num2:");<br />    l3=new Label("Num3:");<br />    t1=new TextField(10);<br />    t2=new TextField(10);<br />    t3=new TextField(10);<br />    b1=new Button("Display");<br />    add(l1);<br />    add(t1);<br />    add(l2);<br />    add(t2);<br />    add(b1);<br />    add(l3);<br />    add(t3);<br />    b1.addActionListener(this);<br />    t1.addTextListener(this);<br />    t2.addTextListener(this);<br />}<br />   public void actionPerformed(ActionEvent ae)<br />   {<br />       try<br />       {<br />           int x=Integer.parseInt(t1.getText());<br />           int y=Integer.parseInt(t2.getText());<br />           if(ae.getSource()==b1)<br />             res=x/y;<br />       }<br />       catch(NumberFormatException nfe)<br />       { <br />           javax.swing.JOptionPane.showMessageDialog(this, "Please enter Integer value");<br />       }<br />       catch(ArithmeticException afe)<br />       {<br />           javax.swing.JOptionPane.showMessageDialog(this,"Please enter non-zero value");<br />       }<br />       t3.setText(String.valueOf(res));<br />   }<br />   public void textValueChanged(TextEvent te)<br />   {<br />       if(!t1.getText().equals("")&&(!t2.getText().equals("")))<br />       {<br />           b1.setEnabled(true);<br />           <br />       }<br />       else<br />           b1.setEnabled(false);<br />           <br />   }<br />}</span></span></span></div>
<br />
<div style="background: #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;">Output
</span></span></div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhovP99rc442iyWuxa-48AdGA6aaXQIhHbSx7gWMvJchTVM2SbX1xTMPFvYbjeZJItVTfgw5QMasfIcdBadf2ooTCSYZWyzLYaFASfnSJBhBh24Qupm95l8yWS-wuOHl6EvCgygS2UnGAY/s1600/dividedemo.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="246" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhovP99rc442iyWuxa-48AdGA6aaXQIhHbSx7gWMvJchTVM2SbX1xTMPFvYbjeZJItVTfgw5QMasfIcdBadf2ooTCSYZWyzLYaFASfnSJBhBh24Qupm95l8yWS-wuOHl6EvCgygS2UnGAY/s1600/dividedemo.PNG" width="320" /></a></div>
<br /></div>

JAVA APPLET PROGRAM TO HANDLE DIVIDE BY ZERO EXCEPTION

Program Statement: Write a program that creates a user interface to perform integer divisions. The user enters two numbers in the text f...

JAVA APPLET PROGRAM TO CALCULATE FACTORIAL

on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: white;">Software: Windows 8,

Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">import java.applet.*;<br />import java.awt.event.*;<br />import java.awt.*;<br />/*<applet code="Factorial" width=500 height=500> </applet> */<br />public class FactorialApplet extends Applet implements ActionListener<br />{<br />  Label l1,l2;<br />  TextField t1,t2;<br />  Button b1,b2;<br />  public void init()<br />  {<br />      l1=new Label("Enter a value: ");<br />      l2=new Label("Result:");<br />      t1=new TextField(10);<br />      t2=new TextField(10);<br />      b1=new Button("Calculate");<br />      b2=new Button("Clear");<br />      add(l1);<br />      add(t1);<br />      add(b1);<br />      add(b2);<br />      add(l2);<br />      add(t2);<br />      b1.addActionListener(this);<br />      b2.addActionListener(this);<br />  }<br />  public void actionPerformed(ActionEvent ae)<br />  {<br />      int n=Integer.parseInt(t1.getText());<br />      int fact=1;<br />      if(ae.getSource()==b1)<br />      {<br />          if(n==0||n==1)<br />          { <br />              fact=1;<br />          t2.setText(String.valueOf(fact));<br />          }<br />          else<br />          {<br />          for(int i=1;i<=n;i++)<br />              fact=fact*i;<br />          }<br />     t2.setText(String.valueOf(fact));<br />      }<br />      else if(ae.getSource()==b2)<br />      {<br />          t1.setText("");<br />          t2.setText("");<br />      }<br />      <br />  }</span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans- serif;"><span style="color: black;">}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="size: small;">Output
</span></span></span></div>
<br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhs7mAY9EVaBaW-8U6raEP7EEN1XRyToTC-6XSxJpfC0HasNw-J4xms43Qdc74ayk8-RtGJ0JbI_YxpZXX6VirS7Ew8CCNoLLXl1Vpg4rtSkkVmmf5Wl7qgGN47XS7gSpwAtx8OGwt8aEg/s1600/factorialapplet.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="246" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhs7mAY9EVaBaW-8U6raEP7EEN1XRyToTC-6XSxJpfC0HasNw-J4xms43Qdc74ayk8-RtGJ0JbI_YxpZXX6VirS7Ew8CCNoLLXl1Vpg4rtSkkVmmf5Wl7qgGN47XS7gSpwAtx8OGwt8aEg/s1600/factorialapplet.PNG" width="320" /></a></div>
</div>

JAVA APPLET PROGRAM TO CALCULATE FACTORIAL

Program Statement: Develop an applet that receives an integer in one text field, and computes its factorial value and returns it in anoth...

JAVA PROGRAM TO FIND ROOTS OF A QUADRATIC EQUATION

<div dir="ltr" style="text-align: left;" trbidi="on">
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<div style="text-align: left;">
<span style="font-family: "Trebuchet MS",sans-serif; font-size: small;"><span style="color: white;">Program Statement: Write a JAVA program to find roots of a Quadratic Equation. If Discriminant is negative, display a message stating that there are no real solutions. </span></span></div>
</div>
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="clear: right; float: right; height: 231px; margin-bottom: 1em; margin-left: 1em; text-align: right; width: 271px;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRoLuAsSZzMw3Osvf37ttVQjX8a0OdQiAVMfjFhBI26glCHxw5DAGmCqEgyVE1ECQ5Z6xBh2sYq5S1vP3NCACPWyWV_mL7QbbeRR2rNegJVaVs_YpdfmhJvRvc7ichMrOrtkMdKnQP33s/s1600/JAVA_Program_Image.png" imageanchor="1" style="clear: right; margin-bottom: 1em; margin-left: auto; margin-right: auto;"><img border="0" height="200" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiRoLuAsSZzMw3Osvf37ttVQjX8a0OdQiAVMfjFhBI26glCHxw5DAGmCqEgyVE1ECQ5Z6xBh2sYq5S1vP3NCACPWyWV_mL7QbbeRR2rNegJVaVs_YpdfmhJvRvc7ichMrOrtkMdKnQP33s/s1600/JAVA_Program_Image.png" width="200" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">Java Program Image</td></tr>
</tbody></table>
<br />
<div style="background: #4e9cf4; border-radius: 30px; border: 1px solid red; padding: 10px; width: 300px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS", sans-serif;">Tested on:</span></span><br />
<br />
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;">Software: Windows 8, Jdk 1.6,   Netbeans IDE</span></span> <br />
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;"><br /></span></span>
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;">Hardware: Intel Core i3, 4 GB RAM, 500 GB HDD</span></span></div>
<div dir="ltr" style="text-align: left;" trbidi="on">
<br />
<br />
<br />
<br /></div>
<div class="separator" style="clear: both; text-align: center;">
</div>
<div style="background: #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: white;">Source Code</span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: black;">@Author: Praveen Kanwar </span></span></span><br />
<span style="color: white; font-size: small;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="color: black;">import java.util.*;<br />class QuadraticRoots <br />{<br />   public static void main(String[] args) <br />    {<br />        int a,b,c,d;<br />        Scanner sn=new Scanner(System.in);<br />        System.out.println("Enter a,b,c values: ");<br />        a=sn.nextInt();<br />        b=sn.nextInt();<br />        c=sn.nextInt();<br />        d=b*b-4*a*c;<br />        if(d>0)<br />        {<br />            System.out.println("Roots are real and distinct");<br />            System.out.println("Roots are:");<br />            double r1=((-b)+Math.sqrt(d))/(2*a);<br />            double r2=((-b)-Math.sqrt(d))/(2*a);<br />            System.out.println("r1= "+r1);<br />            System.out.println("r2= "+r2);<br />            <br />            <br />        }<br />        else if(d==0)<br />        {<br />             System.out.println("Roots are real and equal");<br />            System.out.println("Roots are:");<br />            double r1=(-b)/(2*a);<br />            double r2=(-b)/(2*a);<br />            System.out.println("r1= "+r1);<br />            System.out.println("r2= "+r2);<br />        }<br />        else<br />            System.err.println("Roots are imaginary!");<br />    }<br />}</span></span></span></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-family: "Trebuchet MS",sans-serif;"><span style="font-size: small;">Output
</span></span></span></div>
<br />
<div style="background: #fff; border: 1px solid red; padding: 10px;">
CASE 1: <br />
Enter a,b,c values: <br />
1 2 3<br />
Roots are imaginary!<br />
CASE 2: <br />
Enter a,b,c values: <br />
1 5 6<br />
Roots are real and distinct<br />
Roots are:<br />
r1= -2.0<br />
r2= -3.0</div>
</div>

JAVA PROGRAM TO FIND ROOTS OF A QUADRATIC EQUATION

Program Statement: Write a JAVA program to find roots of a Quadratic Equation. If Discriminant is negative, display a message stating tha...

BIT STUFFING IN JAVA WITH SOURCE CODE AND DESCRIPTION

<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-family: "Trebuchet MS", sans-serif;"><b>Bit Stuffing</b> is one of the framing technique used in Data-Link Layer (layer 2) of OSI Reference Model.<br />  In Bit-Stuffing technique, stuffing is done at the bit level. It was developed for the once very popular HDLC(High-Level Data Link Layer) protocol. Each frame begins and ends with a special bit pattern 01111110 or 0x7E in hexadecimal. This pattern is a flag byte.</span><br />
<br />
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="font-size: large;"><b><span style="color: white;">"Whenever the sender's data link layer encounters five consecutive 1s in the data, it automatically stuffs a 0 bit into the outgoing bit stream" </span></b></span><br />
<span style="font-size: large;"><b><span style="color: white;">     "Whenever the receiver sees five consecutive incoming 1 bits, followed by a 0 bit, it automatically destuffs (i.e, deletes) the 0 bit."
</span></b></span></div>
<br />
<span style="font-family: "Trebuchet MS", sans-serif;"><b>For Example:</b> </span><br />
<br />
<span style="font-family: "Trebuchet MS", sans-serif;">If the user data contain the flag pattern, 01111110, this flag is transmitted as 011111010 but stored in the receiver's memory as 01111110, as shown in fig below:</span><br />
<table align="center" cellpadding="0" cellspacing="0" class="tr-caption-container" style="margin-left: auto; margin-right: auto; text-align: center;"><tbody>
<tr><td style="text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6QlmvJx6UNfxjZWOsz5GR2BmgLleVbzii4yMRPxQXn_6SyuhoWe4IzXfGCKb7qADGKIdb6KL0Nd2UCMcQJMQkaSk0s_CoZ6U1sNNRSsWz7EetOJyxB6Cy7doxU_WoEonrpajF1eSPuKE/s1600/bit_stuff.PNG" imageanchor="1" style="margin-left: auto; margin-right: auto;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi6QlmvJx6UNfxjZWOsz5GR2BmgLleVbzii4yMRPxQXn_6SyuhoWe4IzXfGCKb7qADGKIdb6KL0Nd2UCMcQJMQkaSk0s_CoZ6U1sNNRSsWz7EetOJyxB6Cy7doxU_WoEonrpajF1eSPuKE/s1600/bit_stuff.PNG" /></a></td></tr>
<tr><td class="tr-caption" style="text-align: center;">fig.a) Original Data. b) Stuffed Data. c) Received Data</td></tr>
</tbody></table>
<br />
<div style="background: none repeat scroll 0% 0%#4e9cf4; border: 1px solid red; padding: 10px;">
<span style="color: white;"><span style="font-size: large;"><b>Source Code
</b></span></span></div>
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<br />

<br />
<div class="MsoNormal">
import java.util.*;</div>
<div class="MsoNormal">
public class SEFBS </div>
<div class="MsoNormal">
<span style="mso-tab-count: 1;">                </span>{</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">       </span>public static
void main(String[] args)</div>
<div class="MsoNormal">
<span style="mso-tab-count: 2;">                                </span><span style="mso-spacerun: yes;">   </span>{</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">             
</span>System.out.print("Enter the Binary message: ");</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">              </span>Scanner
sn=new Scanner(System.in);</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">              </span>String
data = sn.nextLine();</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">              </span>String
res = new String();</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">              </span>String
out=new String();</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">              </span>int
counter = 0;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">              </span>for(int
i=0;i<data.length();i++)</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                </span>{</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                 </span><span style="mso-spacerun: yes;">  </span></div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                   </span>if
(data.charAt(i)!='1' && data.charAt(i)!='0')</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{ </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>System.out.println("Enter only Binary values!!!");</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>return;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                  </span><span style="mso-spacerun: yes;"> </span>if(data.charAt(i) == '1')</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>counter++;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>res = res + data.charAt(i); </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                  
</span>else</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{ </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>res = res + data.charAt(i);</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>counter = 0;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                  
</span>if(counter == 5)</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{ </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>res = res + '0';</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                        
</span><span style="mso-spacerun: yes;">   </span>counter = 0;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                </span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">            </span>String
inc="01111110"+res+"01111110";</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">           
</span>System.out.println("The Message to be transfered: " +inc);</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">           
</span>System.out.println("Seding Message....");</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">            </span>counter=0;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">            </span>for(int
i=0;i<res.length();i++)</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                </span>{</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                    </span></div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                   
</span>if(res.charAt(i) == '1')</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{</div>
<div class="MsoNormal">
                             </div>
<br />
<div class="MsoNormal">

</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>counter++;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                           
</span>out = out + res.charAt(i); </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">     </span><span style="mso-spacerun: yes;">                      </span></div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                   
</span>else </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{ </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                            
</span>out = out + res.charAt(i);</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                            
</span>counter = 0;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                  
</span>if(counter == 5)</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>{ </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                             
</span>if((i+2)!=res.length())</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                             
</span>out = out + res.charAt(i+2);</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                             
</span>else</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                             
</span>out=out + '1';</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                             
</span>i=i+2;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                             
</span>counter = 1;</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">                       
</span>}</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">               </span>} </div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">           </span></div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">            
</span>System.out.println("Message Recevied...Successfully!!!");</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">            
</span>System.out.println("The Destuffed Message is: "+out);</div>
<div class="MsoNormal">
<span style="mso-spacerun: yes;">       </span>}</div>
<div class="MsoNormal">
}</div>
<div class="MsoNormal">
<br /></div>
<br /></div>
<br />
<div style="background: none repeat scroll 0% 0% #4e9cf4; border: 1px solid red; padding: 10px;">
<span style="font-size: large;"><span style="color: white;"><b>Output  </b></span></span></div>
<div>
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHE1HTgPy0IMSKEwFjURCkawZ4PkMxRaZjW8QwkrYCezBSZa26TEone6JzqOeHvpgACGTRRDw66Cp3I2HbWXGqroYOyFmQji0fv3t09mSvchZ7jGlKnhQFVdzpWbYE8Mc-JKmr2bhGzUk/s1600/bit_stuff_output.PNG" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="227" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgHE1HTgPy0IMSKEwFjURCkawZ4PkMxRaZjW8QwkrYCezBSZa26TEone6JzqOeHvpgACGTRRDw66Cp3I2HbWXGqroYOyFmQji0fv3t09mSvchZ7jGlKnhQFVdzpWbYE8Mc-JKmr2bhGzUk/s1600/bit_stuff_output.PNG" width="400" /></a></div>
</div>
</div>

BIT STUFFING IN JAVA WITH SOURCE CODE AND DESCRIPTION

Bit Stuffing is one of the framing technique used in Data-Link Layer (layer 2) of OSI Reference Model. In Bit-Stuffing technique, stuffi...