Can anyone provide me code for a very simple java applet GUI? I need it in GUI applet and should have a button. When the button is clicked, a line should be drawn somewhere in there.

Please provide help, i m just learning java and need it urgently.....

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.Object.*;

public class ProblemB {
static int Counter ;

static int windowWidth;
static int windowHeight;

// FOUR WINDOW CORNERS
static int x1;
static int y1;

static int x2;
static int y2;

static int x3;
static int y3;

static int x4;
static int y4;

static boolean flag;
static int T1;
// Diagonal Point
static int diagonalPointX;
static int diagonalPointY;
static int triangle1Y1;
static int triangle1Y2;
static class MyFrame extends JFrame {
public void paint (Graphics g) {
super.paint(g);
System.out.println("printing " + Counter);
if (flag){
g.setColor(Color.BLUE);
}
else {
g.setColor(Color.BLACK);
}

g.drawString( new Integer (Counter).toString(),50,50);


g.drawLine( 5, 30, windowWidth-5,windowHeight-2 );
g.drawLine(5,windowHeight-2, windowWidth-5, 30 );
}
}

static MyFrame frame;

public static void main (String[] args) {
windowWidth = 200; // Default window Width
windowHeight = 200; // Default Window Height

frame = new MyFrame ();

Dimension Size = new Dimension (windowWidth,windowHeight);
//Vec2d[] Vertex1 = new Vec2d[100];
class MyAdapter extends MouseAdapter {

public void mouseClicked (MouseEvent e) {
Counter++;
if (Counter%2==0) {
flag = true;
}
else {
flag = false;
}
frame.repaint();
x1 = 5;
y1 = 30;

x2 = windowWidth-5 ;
y2 = 30;

x3 = windowWidth;
y3 = windowHeight-2;

x4 = 0;
y4 = windowHeight-2;

// Diagonal Point
diagonalPointX = (x1+x3)/2 ;
diagonalPointY = (y1+y3)/2;

// System.out.println(diagonalPointX +","+diagonalPointY);
Point x_y = new Point(e.getX(),e.getY());
// System.out.println(" point " +x_y);

// swcond point on diagonal 1
triangle1Y1 = (((y3-y1)/(x3-x1))*(x2-x1))+y1;
triangle1Y2 = (((y4-y2)/(x4-x2))*(x1 -x2))+y2;

if(triangle1Y1 if(e.getY() T1++;
}
}
if(triangle1Y1>y2){
if(e.getY()>y2){
T1++;
}
}
if(triangle1Y2 if(e.getY() T1++;
}
}
if(triangle1Y2>y1){
if(e.getY()>y1){
T1++;
}
}
System.out.println(triangle1Y1+" "+triangle1Y2);
if(T1==2){
System.out.println("The point is inside triangle 1.");
}
T1=0;
}
}

class MyWindowAdapter extends WindowAdapter {
public void windowClosing (WindowEvent e) {

System.exit(0);
}
}
class MyComponentAdapter extends ComponentAdapter {
public void componentResized(ComponentEvent e) {
windowHeight = frame.getSize().height;
windowWidth = frame.getSize().width;
frame.repaint();
}
}

MyAdapter MyAdapterObject = new MyAdapter();

MyWindowAdapter MyWindowAdapterObject = new MyWindowAdapter();
MyComponentAdapter MyComponentAdapterObject = new MyComponentAdapter();

Counter = 0;
T1=0;
x1 = 5;
y1 = 30;

x2 = windowWidth-5 ;
y2 = 30;

x3 = windowWidth;
y3 = windowHeight-2;

x4 = 0;
y4 = windowHeight-2;
triangle1Y1 = 0;
triangle1Y2 = 0;

flag =false;
// Diagonal Point
diagonalPointX = (x1+x3)/2 ;
diagonalPointY = (y1+y3)/2;

frame.addMouseListener(MyAdapterObject);
frame.addWindowListener (MyWindowAdapterObject);
frame.addComponentListener (MyComponentAdapterObject);
frame.setSize(Size);
frame.setVisible(true);
}
}
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Edit the code to what you want from it.

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wow... just to draw a line in a click this many codes....damn...
then java must be hard..:-)

Its just a single line to draw a line which is
------------------
g.drawLine( 5, 30, windowWidth-5,windowHeight-2 );
----------------------------

The rest of the code is to set up the GUI. There are many lines of unwanted code in that program . I just copy pasted one of my assignments which has the part that marconi needs..

thanks CIGG

hmm..anyone downloaded that program Netbeans 5.0? I can't find the 'Design' and 'Source' button/page. It was there before, but I did something...ani kata gaayo. Anyone know how to bring it back in the software again? HELP..PEEELEESE!

Try View -> Show Editor Toolbar.

oooh! I got it now. Republican, chaina 'view' ma. I had to create a Project first and then right click on the project to open up the JFrame. Durr..hmm..how am I gonna complete other stuff yesto saano kura paani naa aako..hehe.