Problem in changing title of frame of outer class by inner class button

[Ashwin Soni]

import java.awt.*;
import java.awt.event.*;
class setTittleTest extends Frame implements ActionListener // outer class
{
	Button b;
	setTittleTest() // main frame
				{
				b = new Button("Main"); 	add(b);	b.addActionListener(this);
				setSize(450,450);
				setTitle("Yes");
				setVisible(true);
				}
				
public void change()
{
	setTitle("tittle changed");
}

class newtitle extends Frame implements ActionListener // inner class
{
		Button b1;
		newtitle()
	{
		setSize(300,120);
		setTitle("inner class Dialogue");
		b1 = new Button("click");			add(b1);		b1.addActionListener(this);
		setVisible(true);
	}
	
	public void actionPerformed(ActionEvent e1)
    	{
    			change(); // here can be a better approach then this?
    	}
	
} // inner class end

public void actionPerformed(ActionEvent e)
	{
			newtitle nt = new newtitle();
	}				
				
public static void main (String[] args) {
				setTittleTest t = new setTittleTest();
			
}
		}

In this program outer class create a frame in which a button b call the inner class, Inner class also create a frame in which on pressing button b1 change the tittle of outer class frame.

Well this code is working fine but i want to know is there some better approach instead of creating method? at line 32.

thanks.

[Alec Porter]

Try this.

    
public void actionPerformed(ActionEvent e1)  
{  
     setTittleTest.this.setTitle("tittle changed"); 
}

[Ashwin Soni]

Thanks Alec Porter.

//............same code upto line 36 above

public void actionPerformed(ActionEvent e)
	{
			nt.setTitle("me also changed");
			
	}				
newtitle nt = new newtitle();				
public static void main (String[] args) {
	setTittleTest t = new setTittleTest();		
}

I want to know why "t.setTitle("text changed");" will not work for outer class from inner class but working for inner class from outer class?

[Alec Porter]

I'm not sure what exactly your problem is but, if you are calling

t.setTitle("text changed");

in the inner class it will not work because the inner class has no reference to object t inside it.

[Darryl Burke]

Ashwin, please UseOneThreadPerQuestion. The other thread you started 8 minutes after this one has been closed.