Swing BorderLayout布局

BorderLayout類排列的組成部分，以適應(yīng)在五個(gè)區(qū)域：東部，西部，北部，南部和中心。每個(gè)區(qū)域只能包含一個(gè)組件，每個(gè)組件在每個(gè)區(qū)域確定相應(yīng)的固定NORTH，SOUTH，EAST，WEST，和CENTER。

類聲明

以下是聲明 java.awt.BorderLayout類：

public class BorderLayout
   extends Object
      implements LayoutManager2, Serializable

字段域

下面是java.awt.BorderLayout類的字段：

• static String AFTER_LAST_LINE -- Synonym for PAGE_END.

• static String AFTER_LINE_ENDS -- Synonym for LINE_END.

• static String BEFORE_FIRST_LINE -- Synonym for PAGE_START.

• static String BEFORE_LINE_BEGINS -- Synonym for LINE_START.

• static String CENTER -- The center layout constraint (middle of container).

• static String EAST -- The east layout constraint (right side of container).

• static String LINE_END -- The component goes at the end of the line direction for the layout.

• static String LINE_START -- The component goes at the beginning of the line direction for the layout.

• static String NORTH -- The north layout constraint (top of container).

• static String PAGE_END -- The component comes after the last line of the layout's content.

• static String PAGE_START -- The component comes before the first line of the layout's content.

• static String SOUTH -- The south layout constraint (bottom of container).

• static String WEST -- The west layout constraint (left side of container).

類構(gòu)造函數(shù)

類方法

方法繼承

這個(gè)類從以下類繼承的方法：

• java.lang.Object

BorderLayout 例子

選擇使用任何編輯器創(chuàng)建以下java程序在 D:/ > SWING > com > yiibai > gui >

package com.yiibai.gui;

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

public class SwingLayoutDemo {
   private JFrame mainFrame;
   private JLabel headerLabel;
   private JLabel statusLabel;
   private JPanel controlPanel;
   private JLabel msglabel;

   public SwingLayoutDemo(){
      prepareGUI();
   }

   public static void main(String[] args){
      SwingLayoutDemo swingLayoutDemo = new SwingLayoutDemo();  
      swingLayoutDemo.showBorderLayoutDemo();       
   }
      
   private void prepareGUI(){
      mainFrame = new JFrame("Java SWING Examples");
      mainFrame.setSize(400,400);
      mainFrame.setLayout(new GridLayout(3, 1));

      headerLabel = new JLabel("",JLabel.CENTER );
      statusLabel = new JLabel("",JLabel.CENTER);        

      statusLabel.setSize(350,100);
      mainFrame.addWindowListener(new WindowAdapter() {
         public void windowClosing(WindowEvent windowEvent){
	        System.exit(0);
         }        
      });    
      controlPanel = new JPanel();
      controlPanel.setLayout(new FlowLayout());

      mainFrame.add(headerLabel);
      mainFrame.add(controlPanel);
      mainFrame.add(statusLabel);
      mainFrame.setVisible(true
            
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