How to set foucs on first label after a user press cancel

[ankiit]

Hi,

I am trying to set foucs on a label in the following code; i am able to set it when the user enters the values first time; i also want to set focus on the same label after the user presses cancel

/*<applet code = "sumApplet.class" width="320" height="250"></applet>*/
public class sumApplet extends java.applet.Applet implements java.awt.event.ActionListener, java.awt.event.FocusListener 
{
	java.awt.Label firstNum, secondNum, result;
	java.awt.TextField f, s, r;
	java.awt.Button sum, cancel;

	public sumApplet() {
		setLayout(null);
		firstNum = new java.awt.Label("First Number");
		secondNum = new java.awt.Label("Second Number");
		result = new java.awt.Label("result");
		f = new java.awt.TextField();
		s = new java.awt.TextField();
		r = new java.awt.TextField();
		r.setEditable(false);
		sum = new java.awt.Button("Sum");
		cancel = new java.awt.Button("Cancel");
		add(firstNum);
		firstNum.setBounds(10, 30, 60, 20);
		add(f);
		f.setBounds(90, 30, 20, 20);
		add(secondNum);
		secondNum.setBounds(10, 70, 80, 20);
		add(s);
		s.setBounds(100, 70, 20, 20);
		add(result);
		result.setBounds(10, 100, 60, 20);
		add(r);
		r.setBounds(90,100,40,20);
		add(sum);
		sum.setBounds(10, 140, 40, 30);
		add(cancel);
		cancel.setBounds(60, 140, 60, 30);
		sum.addActionListener(this);
		cancel.addActionListener(this);
		f.addFocusListener(this);
	}

	public void actionPerformed(java.awt.event.ActionEvent e) 
	{
		java.awt.Button b = (java.awt.Button) e.getSource();
		try
		{
		if(b.getLabel().equals("Sum"))
		{
			String s1 = f.getText();
			String s2 = s.getText();
			int sum = Integer.parseInt(s1) + Integer.parseInt(s2);
			String toResult = " "+ sum;
			r.setText(toResult);
		}
		else
		{
			f.setText(null);
			s.setText(null);
			r.setText(null);
		}
	}
		catch(java.lang.NumberFormatException nfe)
		{
			System.out.println("NumberFormatException" + " " + nfe.getLocalizedMessage());
		}
	}
	public void focusGained(java.awt.event.FocusEvent fg)
	{
		f.setFocusable(isActive());
	}
	public void focusLost(java.awt.event.FocusEvent fl)
	{
		//f.lostFocus(e, what)
	}
}

Output:-


Please help.

Thanks in advance

[DarrylBurke]

Moved from New to Java.

db

[DarrylBurke]

Read through the methods of JLabel, including the methods it inherits from superclasses, looking for any methods that might request the focus. Read the API carefully so you make the right choice -- don't use methods whose use is discouraged.

db