Frame类

类框架（Frame ）是一个顶层窗口边框和标题。它使用BorderLayout作为默认的布局管理器。

类的声明

以下是的声明的java.awt.Frame类：

public class Frame
   extends Window
      implements MenuContainer

字段域

以下java.awt.Frame类的字段：

• static float BOTTOM_ALIGNMENT -- Ease-of-use constant for getAlignmentY.

• static int CROSSHAIR_CURSOR -- Deprecated. replaced by Cursor.CROSSHAIR_CURSOR.

• static int DEFAULT_CURSOR -- Deprecated. replaced by Cursor.DEFAULT_CURSOR.

• static int E_RESIZE_CURSOR -- Deprecated. replaced by Cursor.E_RESIZE_CURSOR.

• static int HAND_CURSOR -- Deprecated. replaced by Cursor.HAND_CURSOR.

• static int ICONIFIED -- This state bit indicates that frame is iconified.

• static int MAXIMIZED_BOTH -- This state bit mask indicates that frame is fully maximized (that is both horizontally and vertically).

• static int MAXIMIZED_HORIZ -- This state bit indicates that frame is maximized in the horizontal direction.

• static int MAXIMIZED_VERT -- This state bit indicates that frame is maximized in the vertical direction.

• static int MOVE_CURSOR -- Deprecated. replaced by Cursor.MOVE_CURSOR.

• static int N_RESIZE_CURSOR -- Deprecated. replaced by Cursor.N_RESIZE_CURSOR.

• static int NE_RESIZE_CURSOR -- Deprecated. replaced by Cursor.NE_RESIZE_CURSOR.

• static int NORMAL -- Frame is in the "normal" state.

• static int NW_RESIZE_CURSOR -- Deprecated. replaced by Cursor.NW_RESIZE_CURSOR.

• static int S_RESIZE_CURSOR -- Deprecated. replaced by Cursor.S_RESIZE_CURSOR.

• static int SE_RESIZE_CURSOR -- Deprecated. replaced by Cursor.SE_RESIZE_CURSOR.

• static int SW_RESIZE_CURSOR -- Deprecated. replaced by Cursor.SW_RESIZE_CURSOR.

• static int TEXT_CURSOR -- Deprecated. replaced by Cursor.TEXT_CURSOR.

• static int W_RESIZE_CURSOR -- Deprecated. replaced by Cursor.W_RESIZE_CURSOR.

• static int WAIT_CURSOR -- Deprecated. replaced by Cursor.WAIT_CURSOR.

类的构造函数

类方法

继承的方法

这个类继承的方法从以下类：

• java.awt.Window

• java.awt.Container

• java.awt.Component

• java.lang.Object

Frame 实例

选择使用任何编辑器创建以下java程序 D:/ > AWT > com > zaixian > gui >

package com.zaixian.gui;

import java.awt.*;
import java.awt.event.*;

public class AwtContainerDemo {
   private Frame mainFrame;
   private Label headerLabel;
   private Label statusLabel;
   private Panel controlPanel;
   private Label msglabel;

   public AwtContainerDemo(){
      prepareGUI();
   }

   public static void main(String[] args){
      AwtContainerDemo  awtContainerDemo = new AwtContainerDemo();          
      awtContainerDemo.showFrameDemo();
   }

   private void prepareGUI(){
      mainFrame = new Frame("Java AWT Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent windowEvent){
            System.exit(0);
         }        
      });    
      headerLabel = new Label();
      headerLabel.setAlignment(Label.CENTER);
      statusLabel = new Label();        
      statusLabel.setAlignment(Label.CENTER);
      statusLabel.setSize(350,100);
   
      msglabel = new Label();
      msglabel.setAlignment(Label.CENTER);
      msglabel.setText("Welcome to TutorialsPoint AWT Tutorial.");

      controlPanel = new Panel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true);  
   }
   
   private void showFrameDemo(){
      headerLabel.setText("Container in action: Frame");   

      final Frame frame = new Frame();
      frame.setSize(300, 300);
      frame.setLayout(new FlowLayout());       
      frame.add(msglabel);
      frame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent windowEvent){
            frame.dispose();
         }        
      });    
      Button okButton = new Button("Open a Frame");

      okButton.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            statusLabel.setText("A Frame shown to the user.");
            frame.setVisible(true);
         }
      });
      controlPanel.add(okButton);

      mainFrame.setVisible(true);  
   }
}

编译程序，使用命令提示符。进入到D:/> AWT，然后键入以下命令。

D:AWT>javac comzaixianguiAwtContainerDemo.java

如果没有错误出现，这意味着编译成功。使用下面的命令来运行程序。

D:AWT>java com.zaixian.gui.AwtContainerDemo

验证下面的输出