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This homework problem has me stumped...

I've been working on this one for hours, and yes, this is homework so I'm not lookig for the answer - just a hint maybe? Question: "why is the tooltip text not displayed in this code?"

package myframewithcomponents;

import javax.swing.*;

public class MyFrameWithComponents extends JFrame {
    
    private JButton jbtOK = new JButton( "OK" );
    
    public static void main(String[] args) { 
        // Create a frame and set its properties 
        JFrame frame = new MyFrameWithComponents(); 
        frame.setTitle( "Logic Error" ); 
        frame.setSize( 200 , 100 ); 
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible( true ); }
    
    public MyFrameWithComponents() { 
        jbtOK.setToolTipText( "This is a button" ); 
        add( new JButton( "OK" ) ); }
}

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Guru Ji

try this

JComponent button = new JButton("OK");

// Set tool tip text
button.setToolTipText("tool tip text");

tburger88

ASKER

OH. My. God. Head. Desk.

It wasn't instantiated. Could I be that dumb? Is that the problem?

kaufmed

It wasn't instantiated.

I might have overlooked something, but everything appears to be instantiated to me. However, I see that in MyFrameWithComponents you are setting the tooltip on the class-level JButton, but then calling the add method with an entirely new and different instance of a JButton. Could that be the issue?

Guru Ji

Could be, try that

Also once you add your button to the component/frame you adding, after that at last assign the tooltip