Swing中选项卡不显示怎么回事？

陌小然灬 2019-01-15 04:42:50

我编的选项卡不显示是为什么？



package send;





import java.awt.*;



import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.awt.event.ItemListener;

import java.awt.event.ItemEvent;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.util.ArrayList;



import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTabbedPane;

import javax.swing.SwingConstants;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;



import java.awt.FlowLayout;



public class send 

{

  public static int n = 0;//定义一个全局变量。

  public static Frame f;

  public static TextField rateText;

  public static Label rateLabel;

  public static Label ipListLabel;

  public static TextArea ipText;

  public static Button btStart;

  public static Button btEnd;

  public static TextArea debugText;

  public static JTabbedPane jtp;

  public static JPanel jp1;

  public static JPanel jp2;

  

  public static double rate;//发送速率

  public static ArrayList<String> receiveIp = new ArrayList<String>();//接收者ip集合









  public static void init(){

      f = new Frame("send");

      f.setLayout(new FlowLayout());

      Toolkit kit = Toolkit.getDefaultToolkit();

      Dimension screenSize = kit.getScreenSize();

      int screenHeight = screenSize.height;

      int screenWidth = screenSize.width;

      screenSize.setSize(screenWidth/2, screenHeight/2);

      f.setPreferredSize(screenSize);

  

      f.setBounds(600,100,400,200);

      f.setLocationRelativeTo(null);

      f.setLayout(null);

      

      //UDP

      jtp = new JTabbedPane();

      jp1 = new JPanel();

      jp2 = new JPanel();

      jtp.add("UDP",jp1);

      jtp.add("TCP",jp2);

      f.add(jtp);



      

     

      rateLabel = new Label("Send Rate(M/s)");

      rateLabel.setLocation(50, 50);

      rateLabel.setSize(200, 50);

      rateLabel.setBackground(Color.YELLOW);

      f.add(rateLabel);

      

      ipListLabel = new Label("Receiver IP List");

      ipListLabel.setLocation(300, 50);

      ipListLabel.setSize(300,50);

      ipListLabel.setBackground(Color.YELLOW);

     f.add(ipListLabel);

      

      

      btStart = new Button("Start");

      btStart.setLocation(650, 50);

      btStart.setSize(100, 50);

      btStart.setBackground(Color.GREEN);

     f.add(btStart);

      btEnd = new Button("End");

      btEnd.setLocation(800, 50);

      btEnd.setSize(100, 50);

      btEnd.setBackground(Color.RED);

     f.add(btEnd);

      

      rateText = new TextField();

      rateText.setLocation(50, 120);

      rateText.setSize(200, 50);

      rateText.setBackground(Color.CYAN);

      f.add(rateText);

      

      ipText = new TextArea();

      ipText.setLocation(300, 120);

      ipText.setSize(300, 300);

      ipText.setBackground(Color.CYAN);

      f.add(ipText);

      

      debugText = new TextArea();

      debugText.setLocation(650, 120);

      debugText.setSize(200, 300);

      debugText.setBackground(Color.CYAN);

     f.add(debugText);

      

      

      

      f.pack();

      f.setVisible(true);

  }



  public static void addEvents(){



      f.addWindowListener(new WindowAdapter(){

          public void windowClosing(WindowEvent e){

              System.exit(0);

          }

      });









      //为按钮添加事件监听器.

      btStart.addActionListener(new ActionListener(){

          public void actionPerformed(ActionEvent e){

              if(e.getSource() == btStart){

                 udpStart();

              }

          }

      });

      btEnd.addActionListener(new ActionListener(){

          public void actionPerformed(ActionEvent e){

              if(e.getSource() == btEnd){

                 udpEnd();

              }

          }

      });

   // 添加选项卡选中状态改变的监听器

      jtp.addChangeListener(new ChangeListener() {

          @Override

          public void stateChanged(ChangeEvent e) {

              System.out.println("当前选中的选项卡: " + jtp.getSelectedIndex());

          }

      });

  }

  protected static void udpStart() {

	// TODO Auto-generated method stub

	  //获取参数

	rate = Double.valueOf(rateText.getText());

	String strs = ipText.getText();

	String[] split = strs.split("\r\n");

	receiveIp.clear();

	for(int i=0;i<split.length;i++)

		receiveIp.add(split[i]);

	int i=0;	

	while(true)

	{

		rateText.setText("start.i="+i);

		i++;

		try {

			Thread.sleep(1000);

		} catch (InterruptedException e) {

			// TODO Auto-generated catch block

			e.printStackTrace();

		}

	}

	

}



protected static void udpEnd() {

	// TODO Auto-generated method stub



	

	

}



public static void main(String[] args) 

  {

      init();

      

      addEvents();

  }

}