Thread: about countdown timer and jcombobox need help please

""CAN YOU HELP ME ? WHAT WILL I ADD SO THE PROGRAM WILL IDENTIFY IF THERES A DOUBLE CHECKED JCHECKBOX . I DONT KNOW THE EXACT CODE FOR THAT . AND PLEASE CAN YOU GUYS GIVE ME A LINK FOR ANY SOURCE OF JAVA PACKAGE. SORRY WRONG TITLE LOL ""

import javax.swing.JApplet;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JCheckBox;
 
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
 
 
public class MODos extends JApplet  {
	 JTextField ftext;
	 JTextField stext;
	 JTextField ctext;
	 JButton compute;
	 JButton clear;
	 JButton exit;
	 // Set to global variable scope
	 JCheckBox add, subtract, divide, multiply;
	 int first,sec,comp;
 
 
	public MODos() {
		getContentPane().setLayout(null);
 
 
 
		JLabel lbl1 = new JLabel("Enter First Number :");
		lbl1.setBounds(67, 78, 160, 17);
		getContentPane().add(lbl1);
 
		JLabel lbl2 = new JLabel("Enter Second Number  :");
		lbl2.setBounds(67, 110, 160, 20);
		getContentPane().add(lbl2);
 
		final JLabel lblNewLabel_2 = new JLabel("");
		lblNewLabel_2.setBounds(67, 175, 148, 14);
		getContentPane().add(lblNewLabel_2);
 
		ftext = new JTextField();
		ftext.setBounds(237, 76, 118, 20);
		getContentPane().add(ftext);
		ftext.setColumns(10);
 
		stext = new JTextField();
		stext.setBounds(237, 110, 118, 20);
		getContentPane().add(stext);
		stext.setColumns(10);
 
		ctext = new JTextField();
		ctext.setBounds(237, 169, 118, 20);
		getContentPane().add(ctext);
		ctext.setColumns(10);
 
		 compute = new JButton("Compute");
		compute.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
 
 
				if(add.isSelected()) {
 
 
					first=Integer.parseInt(ftext.getText());
					sec=Integer.parseInt(stext.getText());
					comp=first+sec;
					lblNewLabel_2.setText("Sum is :");
					ctext.setText(comp+"");
 
 
				}
				else if(subtract.isSelected()){
 
					first=Integer.parseInt(ftext.getText());
					sec=Integer.parseInt(stext.getText());
					comp=first-sec;
					lblNewLabel_2.setText("Difference  is :");
					ctext.setText(comp+"");
				}
				else if(divide.isSelected()){
 
					first=Integer.parseInt(ftext.getText());
					sec=Integer.parseInt(stext.getText());
					comp=first/sec;
					lblNewLabel_2.setText("Quotient  is :");
					ctext.setText(comp+"");
				}
				else if(multiply.isSelected()){
 
					first=Integer.parseInt(ftext.getText());
					sec=Integer.parseInt(stext.getText());
					comp=first*sec;
					lblNewLabel_2.setText("Product  is :");
					ctext.setText(comp+"");
				}
				// If no operation was selected
				else {
 
					JOptionPane.showMessageDialog(null, "You must select an operator!");
 
				}
 
 
			}
		});
 
		compute.setBounds(58, 245, 89, 23);
		getContentPane().add(compute);
 
		JButton clear = new JButton("Clear");
		clear.setBounds(167, 245, 89, 23);
		getContentPane().add(clear);
		clear.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				ftext.setText(null);
				stext.setText(null);
				ctext.setText(null);
				add.setSelected(false);
				multiply.setSelected(false);
				subtract.setSelected(false);
				divide.setSelected(false);
 
			}
		});
 
		JButton exit = new JButton("Exit");
		exit.setBounds(276, 245, 89, 23);
		getContentPane().add(exit);
		exit.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent arg0) {
				System.exit(0);
			}
		});
 
 
 
		add = new JCheckBox("Add");
		add.setBounds(58, 196, 89, 23);
		getContentPane().add(add);
 
		subtract = new JCheckBox("Subtract");
		subtract.setBounds(228, 222, 83, 23);
		getContentPane().add(subtract);
 
		divide = new JCheckBox("Divide");
		divide.setBounds(228, 196, 83, 23);
		getContentPane().add(divide);
 
		multiply = new JCheckBox("Multiply");
		multiply.setBounds(58, 222, 89, 23);
		getContentPane().add(multiply);
 
	}
 
 
}

Please edit your post and wrap your code with code tags:
[code=java]
YOUR CODE GOES HERE
[/code]
to get highlighting and preserve formatting.

A DOUBLE CHECKED JCHECKBOX .

What does "double checked" mean?

Are you asking about having a GUI display that changes with time?
What have you tried?

jcheckbox is true

The JCheckBox class or its super class has a method that can be called to see how it is set.

Please edit your post and wrap your code with code tags:
[code=java]
YOUR CODE GOES HERE
[/code]
to get highlighting and preserve formatting.

identify if the 2 jcheckbox is checked

Each check box has a method that will say if it is checked. Use that method for the 2 check boxes.

It doesn't matter how many checkboxes you have, each of them has the same method that can be used to see if it is checked.

I don't understand what you are trying to do. Can you explain in more detail?