java swing 布局怎么弄啊

Question

这是我想仿造windows右下角的日期和时间做一个java的图形用户界面的代码，单独的日历和时间的代码知道，但不知道怎么左右布局的，就是红色那不知道怎么写，哪位帮我看看，谢了！
import javax.swing.BoxLayout;
import javax.swing.JPanel;
import javax.swing.JLabel;
import javax.swing.JFrame;
import javax.swing.JTabbedPane;
import javax.swing.border.Border;
public class pang extends JFrame{
public pang(){
super("张学友");
JPanel simpleBorders=new JPanel();
JTabbedPane tabbedPane=new JTabbedPane(); dateTime.add(new Clock(),BorderLayout.EAST);
dateTime.add(new Riqi(),BorderLayout.WEST);
              
                  tabbedPane.addTab("日期与时间",simpleBorders);
getContentPane().add(tabbedPane,BorderLayout.CENTER);
}
public static void main(String[] args) {
        JFrame.setDefaultLookAndFeelDecorated(true);        JFrame frame = new pang();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
        frame.pack();
        frame.setVisible(true);
        frame.setSize(400,400);
    }
    class Clock extends JPanel{
private static final long serialVersionUID = 1L;
public Clock(){
}
}
class Riqi extends JPanel{
private static final long serialVersionUID = 1L;
public Riqi(){
}
}
}

Answer 1

java api里有很多，流布局，网格布局等，自己去找

Answer 2

左右平分，可以用GridLayout
import java.awt.Color;
import java.awt.GridLayout;import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;public class pang extends JFrame {
public pang() {
super("张学友");
this.setSize(400, 400);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel simpleBorders = new JPanel();
simpleBorders.setLayout(new GridLayout(1,2));
simpleBorders.add(new Clock());
simpleBorders.add(new Riqi());
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.addTab("日期与时间", simpleBorders);
getContentPane().add(tabbedPane);
} public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
JFrame frame = new pang();
frame.setVisible(true);
} class Clock extends JPanel {
private static final long serialVersionUID = 1L;
public Clock() {
setBackground(Color.RED);
}
} class Riqi extends JPanel {
private static final long serialVersionUID = 1L;
public Riqi() {
setBackground(Color.BLUE);
}
}
}

Answer 3

   下面是我用Netbeans做的界面，整个frame用边框式布局(BorderLayout)，‘时间和日期’中是自由布局，‘日期’和‘时间’是放在一个JPanel中的，采用网格式布局(GirdLayout)，这样不管是最大化或变小图片都会保持这个比例，不会变型,看下效果:   下面是源码：package com.monitor1394.layout;import java.awt.Dimension;
import java.awt.Toolkit;/*
 * MainUI.java
 *
 * 模仿Window中的时间和日期界面
 *
 * @author monitor
 * Created on 2010-12-24, 13:23:16
 */
public class MainUI extends javax.swing.JFrame {    /** 构造一个MainUI对象 */
    public MainUI() {
        initComponents();
        beCenter();
    }    /** 居中对齐 */
    private void beCenter(){
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        int screenWidth=(int)screenSize.getWidth();
        int screenHeight=(int)screenSize.getHeight();
        int width=this.getWidth();
        int height=this.getHeight();
        this.setBounds((screenWidth-width)/2,(screenHeight-height)/2,width ,height);
    }
    
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {        jPanel1 = new javax.swing.JPanel();
        useButton = new javax.swing.JButton();
        cancelButton = new javax.swing.JButton();
        sureButton = new javax.swing.JButton();
        jPanel2 = new javax.swing.JPanel();
        jTabbedPane1 = new javax.swing.JTabbedPane();
        jPanel3 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jPanel6 = new javax.swing.JPanel();
        datePanel = new javax.swing.JPanel();
        timePanel = new javax.swing.JPanel();
        jPanel4 = new javax.swing.JPanel();
        jPanel5 = new javax.swing.JPanel();        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle(" 日期和时间 属性");        useButton.setText("应用(A)");        cancelButton.setText("取消");        sureButton.setText("确认");        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
                .addContainerGap(240, Short.MAX_VALUE)
                .addComponent(sureButton, javax.swing.GroupLayout.PREFERRED_SIZE, 72, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(cancelButton, javax.swing.GroupLayout.PREFERRED_SIZE, 76, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(useButton))
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(useButton)
                .addComponent(cancelButton)
                .addComponent(sureButton))
        );        getContentPane().add(jPanel1, java.awt.BorderLayout.PAGE_END);        jPanel2.setLayout(new java.awt.GridLayout());        jPanel3.setBackground(new java.awt.Color(255, 255, 255));        jLabel1.setText("当前时区：中国标准时间");        jPanel6.setLayout(new java.awt.GridLayout());        datePanel.setBackground(new java.awt.Color(255, 255, 255));
        datePanel.setBorder(javax.swing.BorderFactory.createTitledBorder("日期(D)"));        javax.swing.GroupLayout datePanelLayout = new javax.swing.GroupLayout(datePanel);
        datePanel.setLayout(datePanelLayout);
        datePanelLayout.setHorizontalGroup(
            datePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 209, Short.MAX_VALUE)
        );
        datePanelLayout.setVerticalGroup(
            datePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 207, Short.MAX_VALUE)
        );        jPanel6.add(datePanel);        timePanel.setBackground(new java.awt.Color(255, 255, 255));
        timePanel.setBorder(javax.swing.BorderFactory.createTitledBorder("时间(T)"));        javax.swing.GroupLayout timePanelLayout = new javax.swing.GroupLayout(timePanel);
        timePanel.setLayout(timePanelLayout);
        timePanelLayout.setHorizontalGroup(
            timePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 209, Short.MAX_VALUE)
        );
        timePanelLayout.setVerticalGroup(
            timePanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 207, Short.MAX_VALUE)
        );        jPanel6.add(timePanel);        javax.swing.GroupLayout jPanel3Layout = new javax.swing.GroupLayout(jPanel3);
        jPanel3.setLayout(jPanel3Layout);
        jPanel3Layout.setHorizontalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanel3Layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jPanel6, javax.swing.GroupLayout.DEFAULT_SIZE, 450, Short.MAX_VALUE)
                    .addComponent(jLabel1))
                .addContainerGap())
        );
        jPanel3Layout.setVerticalGroup(
            jPanel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel3Layout.createSequentialGroup()
                .addComponent(jPanel6, javax.swing.GroupLayout.DEFAULT_SIZE, 236, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jLabel1)
                .addContainerGap())
        );        jTabbedPane1.addTab("日期和时间", jPanel3);        javax.swing.GroupLayout jPanel4Layout = new javax.swing.GroupLayout(jPanel4);
        jPanel4.setLayout(jPanel4Layout);
        jPanel4Layout.setHorizontalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 470, Short.MAX_VALUE)
        );
        jPanel4Layout.setVerticalGroup(
            jPanel4Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 271, Short.MAX_VALUE)
        );        jTabbedPane1.addTab("时区", jPanel4);        javax.swing.GroupLayout jPanel5Layout = new javax.swing.GroupLayout(jPanel5);
        jPanel5.setLayout(jPanel5Layout);
        jPanel5Layout.setHorizontalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 470, Short.MAX_VALUE)
        );
        jPanel5Layout.setVerticalGroup(
            jPanel5Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 271, Short.MAX_VALUE)
        );        jTabbedPane1.addTab("Internet时间", jPanel5);        jPanel2.add(jTabbedPane1);        getContentPane().add(jPanel2, java.awt.BorderLayout.CENTER);        pack();
    }// </editor-fold>    // Variables declaration - do not modify
    private javax.swing.JButton cancelButton;
    private javax.swing.JPanel datePanel;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JPanel jPanel2;
    private javax.swing.JPanel jPanel3;
    private javax.swing.JPanel jPanel4;
    private javax.swing.JPanel jPanel5;
    private javax.swing.JPanel jPanel6;
    private javax.swing.JTabbedPane jTabbedPane1;
    private javax.swing.JButton sureButton;
    private javax.swing.JPanel timePanel;
    private javax.swing.JButton useButton;
    // End of variables declaration
}

Answer 4

假如我有一个时间java，怎么加上去呢？
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.util.Calendar;import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.Timer;public class ClockTest { public static void main(String[] args) {
  ClockFrame cf = new ClockFrame();
  cf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  cf.setVisible(true);
 }}class ClockFrame extends JFrame {
 private static final long serialVersionUID = 1L;
 
 private ClockPanel panel;
 private Calendar calendar;
 
 public ClockFrame() {
  setTitle("Clock");
  setResizable(false);
  
  Toolkit kit = Toolkit.getDefaultToolkit();
  Dimension screen = kit.getScreenSize();
  int screenX = screen.width;
  int screenY = screen.height;
  setLocation(screenX / 3,screenY / 3);
  
  ActionListener listener = new ActionListener(){   public void actionPerformed(ActionEvent e) {
    calendar = getClock();
    
    String h = String.valueOf(calendar.get(Calendar.HOUR_OF_DAY));
    String m = String.valueOf(calendar.get(Calendar.MINUTE));
    String s = String.valueOf(calendar.get(Calendar.SECOND));
    
    TextPanel tp = new TextPanel(h,m,s);
    add(tp,BorderLayout.NORTH);
    
    panel = new ClockPanel(h,m,s);
    add(panel,BorderLayout.CENTER);
    
    pack();    
   }  
  };
  
  new Timer(1000,listener).start();
 }
 
 public Calendar getClock() {
  Calendar calendar = Calendar.getInstance();
  return calendar;
 }
}class TextPanel extends JPanel {
 private static final long serialVersionUID = 1L;
 
 private JTextField hourField;
 private JTextField minuteField;
 private JTextField secondField;
 
 public TextPanel(String h,String m,String s) {
  setBackground(Color.white);
  
  add(new JLabel("时钟:"));
  hourField = new JTextField(h,3);
  hourField.setEditable(false);
  add(hourField);
  
  add(new JLabel("分钟:"));
  minuteField = new JTextField(m,3);
  minuteField.setEditable(false);
  add(minuteField);
  
  add(new JLabel("秒钟:"));
  secondField = new JTextField(s,3);
  secondField.setEditable(false);
  add(secondField);
 }
}class ClockPanel extends JPanel {
 private static final long serialVersionUID = 1L;
 
 private double seconds = 0;
 private double minutes = 0;
 private double hours = 0; private int RADIUS = 100;
 
 private double SECOND_HAND_LENGTH = 0.8 * RADIUS;
 private double MINUTE_HAND_LENGTH = 0.8 * RADIUS;
 private double HOUR_HAND_LENGTH = 0.7 * RADIUS;
 
 private int centerX = 0;
 private int centerY = 0;
 
 public ClockPanel(String h,String m,String s) {
  setBackground(Color.pink);
  
  hours = Double.parseDouble(h);
  minutes = Double.parseDouble(m);
  seconds = Double.parseDouble(s);
  
  setPreferredSize(new Dimension(2 * RADIUS + 100,2 * RADIUS + 100));
 } public void paintComponent(Graphics g) {
  super.paintComponent(g);
  Graphics2D gs = (Graphics2D)g;
  
  centerX = this.getWidth() / 2;
  centerY = this.getHeight() / 2;
  
  gs.setColor(Color.GREEN);
  gs.drawString("张学义", centerX - 20, centerY - RADIUS / 2);
  gs.drawString("MADE IN CHINA", centerX - 40, centerY + RADIUS / 2);
  
  gs.setColor(Color.WHITE);
  for(double nlLoop = 0; nlLoop <= 2; nlLoop = nlLoop + 0.1) {
   Ellipse2D circle = new Ellipse2D.Double(
     centerX - RADIUS + 15 + nlLoop,
     centerY - RADIUS + 15 + nlLoop,
     2 * (RADIUS - 15),
     2 * (RADIUS - 15));
   gs.draw(circle);
  }
  for(double nlLoop = 0; nlLoop <= 2; nlLoop = nlLoop + 0.1) {
   Ellipse2D circle = new Ellipse2D.Double(
     centerX - RADIUS - 9 + nlLoop,
     centerY - RADIUS - 9 + nlLoop,
     2 * (RADIUS + 9),
     2 * (RADIUS + 9));
   gs.draw(circle);
  }
  
  String[] timer = {"Ⅰ","Ⅱ","Ⅲ","Ⅳ","Ⅴ","Ⅵ","Ⅶ","Ⅷ","Ⅸ","Ⅹ","Ⅺ","Ⅻ"};
  gs.setColor(Color.RED);
  int gX = centerX - 3;
  int gY = centerY - RADIUS + 5;
  for(int i = 0; i < 12; i ++) {
   int x = (int) (gX + RADIUS * Math.sin(2 * Math.PI * (i + 1) / 12));
   int y = (int) (gY + RADIUS * (1.0 - Math.cos(2 * Math.PI * (i + 1) / 12)));
   
   gs.drawString(timer[i], x, y);
  }
  
  double secondAngle = Math.toRadians(360 * seconds / 60);
  drawHand(gs,secondAngle,SECOND_HAND_LENGTH,"s");
  
  double minuteAngle = Math.toRadians(360 * (minutes + seconds / 60) / 60);
  drawHand(gs,minuteAngle,MINUTE_HAND_LENGTH,"m");
  
  double hourAngle = Math.toRadians(360 * (hours - 12) / 12 + 360 * minutes / (60 * 12));
  drawHand(gs,hourAngle,HOUR_HAND_LENGTH,"h");
 }
 
 private void drawHand(Graphics2D gc,double angle,double hand,String l) {
  Point2D center = new Point2D.Double(centerX,centerY);
  Point2D end = new Point2D.Double(
    centerX + hand * Math.sin(angle),
    centerY - hand * Math.cos(angle));
  if(l.equals("h")) {
   gc.setColor(Color.RED);
  } else if(l.equals("m")) {
   gc.setColor(Color.green);
  } else if(l.equals("s")) {
   gc.setColor(Color.BLUE);
  }
  gc.draw(new Line2D.Double(center,end));
 }
 
}