Java by API/javax.swing/AbstractAction

AbstractAction: putValue(String key, Object newValue)

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JToolBar;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Action Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    final Action printAction = new PrintHelloAction();
    JMenuBar menuBar = new JMenuBar();
    JMenu menu = new JMenu("File");
    menuBar.add(menu);
    menu.add(new JMenuItem(printAction));
    JToolBar toolbar = new JToolBar();
    toolbar.add(new JButton(printAction));
    JButton enableButton = new JButton("Enable");
    ActionListener enableActionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        printAction.setEnabled(true);
      }
    };
    enableButton.addActionListener(enableActionListener);
    JButton disableButton = new JButton("Disable");
    ActionListener disableActionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        printAction.setEnabled(false);
      }
    };
    disableButton.addActionListener(disableActionListener);
    JButton relabelButton = new JButton("Relabel");
    ActionListener relabelActionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        printAction.putValue(Action.NAME, "Hello, World");
      }
    };
    relabelButton.addActionListener(relabelActionListener);
    JPanel buttonPanel = new JPanel();
    buttonPanel.add(enableButton);
    buttonPanel.add(disableButton);
    buttonPanel.add(relabelButton);
    frame.setJMenuBar(menuBar);
    frame.add(toolbar, BorderLayout.SOUTH);
    frame.add(buttonPanel, BorderLayout.NORTH);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}
class PrintHelloAction extends AbstractAction {
  PrintHelloAction() {
    super("Print");
    putValue(Action.SHORT_DESCRIPTION, "Hello, World");
  }
  public void actionPerformed(ActionEvent actionEvent) {
    System.out.println("Hello, World");
  }
}

AbstractAction: setEnabled(boolean newValue)

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JToolBar;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Action Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    final Action printAction = new PrintHelloAction();
    JMenuBar menuBar = new JMenuBar();
    JMenu menu = new JMenu("File");
    menuBar.add(menu);
    menu.add(new JMenuItem(printAction));
    JToolBar toolbar = new JToolBar();
    toolbar.add(new JButton(printAction));
    JButton enableButton = new JButton("Enable");
    ActionListener enableActionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        printAction.setEnabled(true);
      }
    };
    enableButton.addActionListener(enableActionListener);
    JButton disableButton = new JButton("Disable");
    ActionListener disableActionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        printAction.setEnabled(false);
      }
    };
    disableButton.addActionListener(disableActionListener);
    JButton relabelButton = new JButton("Relabel");
    ActionListener relabelActionListener = new ActionListener() {
      public void actionPerformed(ActionEvent actionEvent) {
        printAction.putValue(Action.NAME, "Hello, World");
      }
    };
    relabelButton.addActionListener(relabelActionListener);
    JPanel buttonPanel = new JPanel();
    buttonPanel.add(enableButton);
    buttonPanel.add(disableButton);
    buttonPanel.add(relabelButton);
    frame.setJMenuBar(menuBar);
    frame.add(toolbar, BorderLayout.SOUTH);
    frame.add(buttonPanel, BorderLayout.NORTH);
    frame.setSize(300, 200);
    frame.setVisible(true);
  }
}
class PrintHelloAction extends AbstractAction {
  PrintHelloAction() {
    super("Print");
    putValue(Action.SHORT_DESCRIPTION, "Hello, World");
  }
  public void actionPerformed(ActionEvent actionEvent) {
    System.out.println("Hello, World");
  }
}

extends AbstractAction

import java.awt.BorderLayout;
import java.awt.ruponent;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
public class MainClass {
  public static void main(String args[]) {
    JFrame frame = new JFrame("Mnemonic/Accelerator Sample");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    final Action printAction = new PrintHelloAction();
    JMenuBar menuBar = new JMenuBar();
    JMenu menu = new JMenu("File");
    menuBar.add(menu);
    JMenuItem menuItem = new JMenuItem("Print");
    KeyStroke ctrlP = KeyStroke.getKeyStroke(KeyEvent.VK_P,
        InputEvent.CTRL_MASK);
    menuItem.setAccelerator(ctrlP);
    menuItem.addActionListener(printAction);
    menu.add(menuItem);
    JButton fileButton = new JButton("About");
    fileButton.setMnemonic(KeyEvent.VK_A);
    fileButton.addActionListener(printAction);
    frame.setJMenuBar(menuBar);
    frame.add(fileButton, BorderLayout.SOUTH);
    frame.setSize(300, 100);
    frame.setVisible(true);
  }
}
class PrintHelloAction extends AbstractAction {
  private static final Icon printIcon = new MyIcon();
  PrintHelloAction() {
    super("Print", printIcon);
    putValue(Action.SHORT_DESCRIPTION, "Hello, World");
  }
  public void actionPerformed(ActionEvent actionEvent) {
    System.out.println("Hello, World");
  }
}
class MyIcon implements Icon {
  public int getIconWidth() {
    return 32;
  }
  public int getIconHeight() {
    return 32;
  }
  public void paintIcon(Component c, Graphics g, int x, int y) {
    g.drawString("jexp.ru", 0, 20);
  }
}