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Saturday 23 February 2019

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Fifth Week Term Work Program 3

2 comments

Question

















Program:

//Displays a frame containing a three CheckBox. Tick the
//CheckBox causes the background of the frame to change from
//white to define color.

import java.awt.*;
import java.awt.event.*;

import javafx.scene.control.CheckBox;

public class checkboxcolor {
public static void main(String[] args) {
Frame f = new ChangecheckboxColorFrame("Check Box");
f.setSize(220, 200);
f.setVisible(true);
}
}
//Frame class
class ChangecheckboxColorFrame extends Frame {
Checkbox checkBox1 = new Checkbox("Red",false);
Checkbox checkBox2 = new Checkbox("Green",false);    
Checkbox checkBox3 = new Checkbox("Blue",false);    
public ChangecheckboxColorFrame(String title) {
super(title);
setLayout(null);
setBackground(Color.white);

//Add  Checkbox to frame and attach listener
checkBox1.setBounds(10,150, 80,50);    
checkBox2.setBounds(90,150, 80,50);  
checkBox3.setBounds(170,150, 80,50);    
add(checkBox1);
checkBox1.addItemListener(new ColorItemListener());
add(checkBox2);    
checkBox2.addItemListener(new ColorItemListener());
add(checkBox3); 
checkBox3.addItemListener(new ColorItemListener());//Attach //window listener
addWindowListener(new WindowCloser());
}
//Listener for checkbox
class ColorItemListener implements ItemListener{
public void itemStateChanged(ItemEvent e) {

boolean a1=checkBox1.getState();
boolean a2=checkBox2.getState();
boolean a3=checkBox3.getState();
if(a1==true && a2==true && a3==true) {
setBackground(Color.WHITE);
}
else if(a1==true) {
if(a2==true) {
setBackground(Color.YELLOW);
}
else if(a3==true) {
setBackground(Color.MAGENTA);
}
else {
setBackground(Color.RED);
}
}
else if(a2==true) {
if(a3==true) {
setBackground(Color.CYAN);
}
else{
setBackground(Color.GREEN);
}
}
else if(a3==true) {
setBackground(Color.BLUE);
}
else {
setBackground(Color.BLACK);
}
}
}
//Listener for window
class WindowCloser extends WindowAdapter {
public void windowClosing(WindowEvent evt) {
System.exit(0);
}
}
}

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2 comments:

  1. Shubham Solanki19 March 2019 at 07:32

    the better one


    package termwork5;

    import java.awt.Checkbox;
    import java.awt.Color;
    import java.awt.Frame;
    import java.awt.event.ItemEvent;
    import java.awt.event.ItemListener;

    class cl{
    public static int r=0,g=0,b=0;
    }


    public class pgm3 {
    public static void main(String[] args) {
    Frame f =new Frame("Random color");
    f.setSize(300,200);
    f.setVisible(true);
    f.setLayout(null);
    f.addWindowListener(new close());
    Checkbox c1=new Checkbox("Red", false);
    Checkbox c2=new Checkbox("Green", false);
    Checkbox c3=new Checkbox("Blue", false);
    c1.setBounds(40, 150, 60, 30);
    c2.setBounds(120, 150, 60, 30);
    c3.setBounds(190, 150, 60, 30);

    c1.addItemListener(new checkcolor(f,c1,c2,c3));
    c2.addItemListener(new checkcolor(f,c1,c2,c3));
    c3.addItemListener(new checkcolor(f,c1,c2,c3));
    f.add(c1);
    f.add(c2);
    f.add(c3);
    }
    }
    class checkcolor implements ItemListener{
    Frame f;
    Checkbox c1,c2,c3;
    public checkcolor(Frame f,Checkbox c1,Checkbox c2,Checkbox c3) {
    // TODO Auto-generated constructor stub
    this.f=f;
    this.c1=c1;
    this.c2=c2;
    this.c3=c3;
    }
    boolean r,g,b;
    @Override
    public void itemStateChanged(ItemEvent e) {
    // TODO Auto-generated method stub
    r=c1.getState();
    g=c2.getState();
    b=c3.getState();
    if(r==true)
    cl.r=255;
    else
    cl.r=0;
    if(g==true)
    cl.g=255;
    else
    cl.g=0;
    if(b==true)
    cl.b=255;
    else
    cl.b=0;
    f.setBackground(new Color(cl.r, cl.g, cl.b));
    }
    }

    ReplyDelete
  2. Cs Amit20 March 2019 at 09:30

    Ok thanks

    ReplyDelete