JButton.setBounds(x,y,w,h) doesn't seem to work

Question

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.SwingUtilities;



public class SimpleExample extends JFrame {



    public SimpleExample() {



        setTitle("Simple example");

        setSize(500, 500);

        setLocationRelativeTo(null);

        setDefaultCloseOperation(EXIT_ON_CLOSE);

        JButton jb = new JButton("TEST");

        jb.setBorderPainted(true);

        jb.setBounds(5, 5, 1, 1); ---> This line

        add(jb);



    }



    public static void main(String[] args) {



        SwingUtilities.invokeLater(new Runnable() {

            @Override

            public void run() {

                SimpleExample ex = new SimpleExample();

                ex.setVisible(true);

            }

        });

    }

}

Just creating a simple button of a preferred size. The

setBounds

method doesn't seem to work. Where am I going wrong?

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Answer 1

Your frame is under the control of a layout manager. It is making the decisions on how to layout your components, and is overriding the values you have specified using setBounds.

Modern GUI's need to run (even on the same OS) in a variety of different graphical environments, including different DPI; screen sizes; and font settings; for example.

The layout manager makes it possible for you to worry (less) about these issues and it is highly recommended that you make use of them

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JButton.setBounds(x,y,w,h) doesn't seem to work

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