frame1.java

来自「是用java开发的一些程序原代码 是用java开发的一些程序原代码」· Java 代码 · 共 63 行

package ex10_06;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Frame1 extends JFrame {
  JPanel contentPane;
  JScrollBar jScrollBar1 = new JScrollBar();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();

  /**Construct the frame*/
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  /**Component initialization*/
  private void jbInit() throws Exception  {
    //setIconImage(Toolkit.getDefaultToolkit().createImage(Frame1.class.getResource("[Your Icon]")));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(null);
    this.setSize(new Dimension(400, 300));
    this.setTitle("Frame Title");
    jScrollBar1.setOrientation(JScrollBar.HORIZONTAL);
    jScrollBar1.setVisibleAmount(0);
    jScrollBar1.setBorder(BorderFactory.createLoweredBevelBorder());
    jScrollBar1.setBounds(new Rectangle(14, 72, 226, 38));
    jScrollBar1.addAdjustmentListener(new java.awt.event.AdjustmentListener() {
      public void adjustmentValueChanged(AdjustmentEvent e) {
        jScrollBar1_adjustmentValueChanged(e);
      }
    });
    jLabel1.setFont(new java.awt.Font("Dialog", 0, 18));
    jLabel1.setText("目前滚动条的值为:");
    jLabel1.setBounds(new Rectangle(12, 28, 161, 19));
    jLabel2.setFont(new java.awt.Font("Dialog", 0, 18));
    jLabel2.setBorder(BorderFactory.createLoweredBevelBorder());
    jLabel2.setToolTipText("");
    jLabel2.setText("0");
    jLabel2.setBounds(new Rectangle(168, 26, 38, 26));
    contentPane.add(jScrollBar1, null);
    contentPane.add(jLabel1, null);
    contentPane.add(jLabel2, null);
  }
  /**Overridden so we can exit when window is closed*/
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }

  void jScrollBar1_adjustmentValueChanged(AdjustmentEvent e) {
jLabel2.setText(String.valueOf(jScrollBar1.getValue()));
  }

}