Java Swing Tutorial - Java JLabel .setDisplayedMnemonicIndex (int index)

Syntax

JLabel.setDisplayedMnemonicIndex(int index) has the following syntax.

public void setDisplayedMnemonicIndex(int index)    throws IllegalArgumentException

Example

In the following code shows how to use JLabel.setDisplayedMnemonicIndex(int index) method.

/*  ww w. j  av  a 2  s . co m*/


import java.awt.GridLayout;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class Main {
  public static void main(String[] args) {
    JTextField firstField = new JTextField(10);
    JTextField middleField = new JTextField(10);
    JTextField lastField = new JTextField(10);

    JLabel firstLabel = new JLabel("First Name", JLabel.RIGHT);
    firstLabel.setDisplayedMnemonic('F');
    firstLabel.setLabelFor(firstField);

    JLabel middleLabel = new JLabel("Middle Initial", JLabel.RIGHT);
    middleLabel.setDisplayedMnemonic('I');
    middleLabel.setDisplayedMnemonicIndex(7);
    middleLabel.setLabelFor(middleField);

    JLabel lastLabel = new JLabel("Last Name", JLabel.RIGHT);
    lastLabel.setDisplayedMnemonic('L');
    lastLabel.setLabelFor(lastField);

    JPanel p = new JPanel();
    p.setLayout(new GridLayout(3, 2, 5, 5));
    p.add(firstLabel);
    p.add(firstField);
    p.add(middleLabel);
    p.add(middleField);
    p.add(lastLabel);
    p.add(lastField);

    JFrame f = new JFrame("MnemonicLabels");
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setContentPane(p);
    f.pack();
    f.setVisible(true);
  }
}