Examples of java.awt.Button

java.awt.Button
This class creates a labeled button. The application can cause some action to happen when the button is pushed. This image depicts three views of a "Quit" button as it appears under the Solaris operating system:

The first view shows the button as it appears normally. The second view shows the button when it has input focus. Its outline is darkened to let the user know that it is an active object. The third view shows the button when the user clicks the mouse over the button, and thus requests that an action be performed.
The gesture of clicking on a button with the mouse is associated with one instance of ActionEvent, which is sent out when the mouse is both pressed and released over the button. If an application is interested in knowing when the button has been pressed but not released, as a separate gesture, it can specialize processMouseEvent, or it can register itself as a listener for mouse events by calling addMouseListener. Both of these methods are defined by Component, the abstract superclass of all components.
When a button is pressed and released, AWT sends an instance of ActionEvent to the button, by calling processEvent on the button. The button's processEvent method receives all events for the button; it passes an action event along by calling its own processActionEvent method. The latter method passes the action event on to any action listeners that have registered an interest in action events generated by this button.
If an application wants to perform some action based on a button being pressed and released, it should implement ActionListener and register the new listener to receive events from this button, by calling the button's addActionListener method. The application can make use of the button's action command as a messaging protocol. @version 1.83 10/31/08 @author Sami Shaio @see java.awt.event.ActionEvent @see java.awt.event.ActionListener @see java.awt.Component#processMouseEvent @see java.awt.Component#addMouseListener @since JDK1.0

          fRun.setEnabled(fSuiteField.getText().length() > 0);
          fStatusLine.setText("");
        }
      }
    );
    fRun= new Button("Run");
    fRun.setEnabled(false);
    fRun.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          runSuite();
        }
      }
    );
    boolean useLoader= useReloadingTestSuiteLoader();
    fUseLoadingRunner= new Checkbox("Reload classes every run", useLoader);
    if (inVAJava())
      fUseLoadingRunner.setVisible(false);


    //---- second section
    fProgressIndicator= new ProgressBar();


    //---- third section
    fNumberOfErrors= new Label("0000", Label.RIGHT);
    fNumberOfErrors.setText("0");
    fNumberOfErrors.setFont(PLAIN_FONT);


    fNumberOfFailures= new Label("0000", Label.RIGHT);
    fNumberOfFailures.setText("0");
    fNumberOfFailures.setFont(PLAIN_FONT);


    fNumberOfRuns= new Label("0000", Label.RIGHT);
    fNumberOfRuns.setText("0");
    fNumberOfRuns.setFont(PLAIN_FONT);


    Panel numbersPanel= createCounterPanel();


    //---- fourth section
    Label failureLabel= new Label("Errors and Failures:");


    fFailureList= new List(5);
    fFailureList.addItemListener(
      new ItemListener() {
        public void itemStateChanged(ItemEvent e) {
          failureSelected();
        }
      }
    );
    fRerunButton= new Button("Run");
    fRerunButton.setEnabled(false);
    fRerunButton.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          rerun();
        }
      }
    );


    Panel failedPanel= new Panel(new GridLayout(0, 1, 0, 2));
    failedPanel.add(fRerunButton);


    fTraceArea= new TextArea();
    fTraceArea.setRows(5);
    fTraceArea.setColumns(60);


    //---- fifth section
    fStatusLine= new TextField();
    fStatusLine.setFont(PLAIN_FONT);
    fStatusLine.setEditable(false);
    fStatusLine.setForeground(Color.red);


    fQuitButton= new Button("Exit");
    fQuitButton.addActionListener(
      new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          System.exit(0);
        }

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  frame_1_grid.columnWeights = frame_1_columnWeights;


  frame_1 = new Panel();
  this.add(frame_1);
  
  ok = new Button();
  ok.setLabel("OK");
  frame_1.add(ok);
  
  title = new Label();
  title.setFont(new Font("Helvetica",Font.PLAIN + Font.BOLD , 18));
  title.setText(message);
  title.setAlignment(Label.CENTER);
  this.add(title);
  
  cancel = new Button();
  cancel.setLabel("Cancel");
  frame_1.add(cancel);
  
  // Geometry management
  GridBagConstraints con = new GridBagConstraints();

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      Panel center = new Panel();
      center.add(new Label(message));


      // Create a panel for the 'OK' button
      Panel bottom = new Panel();
      Button okButton = new Button("   OK   ");
      okButton.addActionListener(new ButtonHandler());
      bottom.add(okButton);
      
      // Add the two panels to the window/frame
      add(center, BorderLayout.CENTER);
      add(bottom,BorderLayout.SOUTH);

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      add(new Panel(), constr);


      constr.gridwidth = 1;
      constr.anchor = GridBagConstraints.CENTER;
      constr.weightx = 1.0;
      add(default_focus = new Button("Accept"), constr);
      default_focus.addActionListener(new Accept());


      Button b;
      constr.gridwidth = GridBagConstraints.REMAINDER;
      add(b = new Button("Reject"), constr);
      b.addActionListener(new Reject());


      constr.weightx = 0.0;
      p = new Separator();
      constr.fill = GridBagConstraints.HORIZONTAL;
      add(p, constr);


      constr.fill = GridBagConstraints.NONE;
      constr.anchor = GridBagConstraints.WEST;
      add(new Label("Accept/Reject all cookies from a host or domain:"), constr);


      p = new Panel();
      p.add(new Label("Host/Domain:"));
      p.add(domain = new TextField(30));
      add(p, constr);


      add(new Label("domains are characterized by a leading dot (`.');"), constr);
      add(new Label("an empty string matches all hosts"), constr);


      constr.anchor = GridBagConstraints.CENTER;
      constr.gridwidth = 1;
      constr.weightx = 1.0;
      add(b = new Button("Accept All"), constr);
      b.addActionListener(new AcceptDomain());


      constr.gridwidth = GridBagConstraints.REMAINDER;
      add(b = new Button("Reject All"), constr);
      b.addActionListener(new RejectDomain());


      pack();


      constr.anchor = GridBagConstraints.WEST;
      constr.gridwidth = GridBagConstraints.REMAINDER;

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         p.add(pp);
         constr.gridwidth = GridBagConstraints.REMAINDER;
         gb.setConstraints(pp, constr);
         constr.gridwidth = 1;
         constr.weightx = 1.0;
         Button b;
         p.add(b = new Button("  OK  "));
         b.addActionListener(new Ok());
         constr.weightx = 1.0;
         gb.setConstraints(b, constr);
         p.add(b = new Button("Clear"));
         b.addActionListener(new Clear());
         constr.weightx = 2.0;
         gb.setConstraints(b, constr);
         p.add(b = new Button("Cancel"));
         b.addActionListener(new Cancel());
         constr.weightx = 1.0;
         gb.setConstraints(b, constr);
         add("South", p);


         pack();

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import junit.framework.TestCase;


public class MouseEventTest extends TestCase {


    public final void testMouseEventComponentintlongintintintintboolean() {
        Button button = new Button("Button");
        MouseEvent event = new MouseEvent(button, MouseEvent.MOUSE_PRESSED, 1000000000,
                InputEvent.BUTTON2_DOWN_MASK, 100, 200,
                10, true);


        assertEquals(event.getSource(), button);

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        assertEquals(event.getY(), 200);
        assertTrue(event.isPopupTrigger());
    }


    public final void testMouseEventComponentintlongintintintintbooleanint() {
        Button button = new Button("Button");
        MouseEvent event = new MouseEvent(button, MouseEvent.MOUSE_PRESSED, 1000000000,
                InputEvent.BUTTON2_DOWN_MASK, 100, 200,
                10, true, MouseEvent.BUTTON1);


        assertEquals(event.getSource(), button);

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        assertEquals(event.getY(), 200);
        assertTrue(event.isPopupTrigger());
    }


    public final void testTranslatePoint() {
        Button button = new Button("Button");
        MouseEvent event = new MouseEvent(button, MouseEvent.MOUSE_PRESSED, 1000000000,
                InputEvent.BUTTON2_DOWN_MASK, 100, 200,
                10, true);


        event.translatePoint(10, 10);

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@SuppressWarnings("serial")
public class InputEventTest extends TestCase {


    public final void testInputEvent() {
        Button button = new Button("Button");
        InputEvent event = new InputEvent(button, 0, 1000000000,
                InputEvent.ALT_DOWN_MASK | InputEvent.BUTTON1_MASK) {};


        assertEquals(event.getSource(), button);
        assertEquals(event.getID(), 0);

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        assertEquals(event.getWhen(), 1000000000);
        assertEquals(event.getModifiers(), InputEvent.ALT_MASK | InputEvent.BUTTON1_MASK);
    }


    public final void testConsuming() {
        Button button = new Button("Button");
        InputEvent event = new InputEvent(button, 0, 1000000000,
                InputEvent.ALT_DOWN_MASK | InputEvent.BUTTON1_MASK) {};


        assertFalse(event.isConsumed());
        event.consume();

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