线程的三个实验.doc

线程的三个实验实验要求：（1）创建两个线程，每个线程的工作是在自己界面的TextField区域中从左到右动态地显示一个字符串，可通过界面按钮启动和中止每个线程的运行。/閬楃暀闂锛氱嚎绋嬪悓鏃剁潯鐪狅紵锛燂紵锛熺紦瀛樹竴涓嬪瓙杈撳嚭锛燂紵锛?import java.awt.*;import java.awt.Color;import java.awt.Container;import java.awt.FlowLayout;import java.awt.GridLayout;import javax.swing.*;import java.awt.event.*;public class ThreadTester1 extends JFrame private JButton runButton1,runButton2; private JButton interruptButton1,interruptButton2; private JTextArea threadTextArea1,threadTextArea2; private JTextField sleepTextField1,sleepTextField2; private ThreadTest threadtest1,threadtest2; private Container container; public ThreadTester1() container=this.getContentPane(); setnew(); layoutSet(); String string1=hello!my name is jj,string2=how are you?my name is zwc; threadtest1=new ThreadTest(threadTextArea1,string1,thread1); threadtest2=new ThreadTest(threadTextArea2,string2,thread2); setSize(400,200); setVisible(true); private void setnew() ButtonHandler buttonhandler=new ButtonHandler(); runButton1=new JButton(鍚姩); runButton1.addActionListener(buttonhandler); runButton2=new JButton(鍚姩); runButton2.addActionListener(buttonhandler); interruptButton1=new JButton(涓柇); interruptButton1.addActionListener(buttonhandler); interruptButton2=new JButton(涓柇); interruptButton2.addActionListener(buttonhandler); threadTextArea1=new JTextArea(); threadTextArea1.setBackground(Color.CYAN); threadTextArea2=new JTextArea(); threadTextArea2.setBackground(Color.CYAN); sleepTextField1=new JTextField(8); sleepTextField1.addActionListener(new TextFieldHandler1(); sleepTextField2=new JTextField(8); sleepTextField2.addActionListener(new TextFieldHandler2(); private void layoutSet() this.setLayout(new GridLayout(4,1); JPanel panel1=new JPanel(new FlowLayout(); panel1.setBackground(Color.GREEN); panel1.add(new JLabel(鐫湢鏃堕棿锛?); panel1.add(this.sleepTextField1); panel1.add(this.runButton1); panel1.add(erruptButton1); JPanel panel2=new JPanel(new FlowLayout(); panel2.setBackground(Color.GREEN); panel2.add(new JLabel(鐫湢鏃堕棿锛?); panel2.add(this.sleepTextField2); panel2.add(this.runButton2); panel2.add(erruptButton2); container.add(this.threadTextArea1); container.add(panel1); container.add(this.threadTextArea2); container.add(panel2); private class ButtonHandler implements ActionListener public void actionPerformed(ActionEvent event) if(event.getSource()=runButton1) try if(threadtest1.isAlive()return; threadtest1.start(); catch(IllegalThreadStateException illegalthreadexception) System.err.println(illegalthreadexception.toString(); else if(event.getSource() = runButton2) try threadtest2.start(); catch(IllegalThreadStateException illegalthreadexception) System.err.println(illegalthreadexception.toString(); else if(event.getSource() = interruptButton1) threadtest1.flag=false; else if(event.getSource() = interruptButton2) threadtest2.flag=false; private class TextFieldHandler1 implements ActionListener public void actionPerformed(ActionEvent event) threadtest1.sleeptime=Long.parseLong(sleepTextField1.getText(); private class TextFieldHandler2 implements ActionListener public void actionPerformed(ActionEvent event) threadtest2.sleeptime=Long.parseLong(sleepTextField2.getText(); private class ThreadTest extends Thread final long fixedspeed=500; public long sleeptime; private int count=0; public boolean flag=true; private String string; JTextArea textarea; public ThreadTest(JTextArea textarea,String string,String name) super(name); this.string=string; this.textarea=textarea; Override public void run() /sleeptime=fixedspeed; while(count=string.length()&flag) SwingUtilities.invokeLater( new Runnable() public void run() textarea.setText(string.substring(0, count+); ); try if(sleeptime=fixedspeed) Thread.sleep(fixedspeed); else Thread.sleep(sleeptime); sleeptime=fixedspeed; catch(InterruptedException interruptedException) System.err.println(interruptedException.toString(); public static void main(String args) ThreadTester1 threadtester=new ThreadTester1(); threadtester.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 实验要求：2）创建三个线程，每个线程的工作是在自己的界面随机地显示26个英文字母中的一个，可通过界面按钮，临时挂起或恢复各线程的运行。/* * To change this template, choose Tools | Templates * and open the template in the editor. */* * * author JJ */import java.awt.*;import javax.swing.*;import java.awt.event.*;public class ThreadTester2 extends JFrame protected String alphet=ABCDEFGHIJKLMNOPQRSTUVWXYZ; private JCheckBox blockCBox; /blockCBox1,blockCBox2,blockCBox3; private JLabel threadLabel;/threadLabel1,threadLabel2,threadLabel3; private Container container; Thread thread; private boolean suspend; public ThreadTester2() container=this.getContentPane(); container.setBackground(Color.GRAY); setnew(); layoutSet(); setSize(400,200); setVisible(true); private void setnew() blockCBox=new JCheckBox3; threadLabel=new JLabel3; thread=new Thread3; suspend=new boolean3; CheckBoxHandler checkboxhandler=new CheckBoxHandler(); for(int i=0;i3;i+) suspendi=false; blockCBoxi=new JCheckBox(绾跨+i+闃诲,false); blockCBoxi.addItemListener(checkboxhandler); threadLabeli=new JLabel(); threadLabeli.setBackground(Color.blue); threadi=new Thread(new RunnableOBJ(),Thread+i); threadi.start(); private class CheckBoxHandler implements ItemListener public void itemStateChanged(ItemEvent event) for(int i=0;i3;i+) if(event.getSource()=blockCBoxi) suspendi=!suspendi; if(!suspendi) synchronized(ThreadTester1.this) ThreadTester1.this.notifyAll(); else threadLabeli.setText(闃诲); return; private void layoutSet() this.setLayout(new GridLayout(3,2); for(int i=0;i3;i+) container.add(threadLabeli); container.add(blockCBoxi); private int getIndex(Thread t) for(int i=0;i3;i+) if(t=threadi)return i; return -1; private class RunnableOBJ implements Runnable public void run() final Thread currentthread=Thread.currentThread(); final int index; index=getIndex(currentthread); while(true) try Thread.sleep(500); synchronized (ThreadTester1.this)/閿佷綇涓荤嚎绋婽hreadTester1瀵硅薄锛屼唬鐮佸潡鐢簬鍐冲畾鏄惁鎸傝捣褰撳墠绾跨 while(suspendindex) ThreadTester1.this.wait(); catch(InterruptedException interruptedException) System.err.println(interruptedException.toString(); SwingUtilities.invokeLater ( new Runnable() public void run() int temp=(int)(java.lang.Math.random()*26); threadLabelindex.setText(绾跨+index+:+ThreadTester1.this.alphet.charAt(temp); );/end of SwingUtilities.invokeLater /end of run(); /end of private class RunnableOBJ implements Runnable public static void main(String args) ThreadTester2 threadtester1=new ThreadTester2(); threadtester1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 实验要求：（3）编写3个线程：各线程分别显示各自的运行时间，第一个线程每隔1秒运行一次，第二线程每隔5秒运行一次，第三个线程每隔10秒运行一次。/* * To change this template, choose Tools | Templates * and open the template in the editor. */package threadtester2;/* * * author JJ */import java.awt.*;import javax.swing.*;import java.util.Calendar;public class ThreadTest2 extends JFrame private Container container; Thread thread; private JLabel timelabel; Calendar date; public ThreadTest2() container=this.getContentPane(); container.setBackground(Color.lightGray); container.setLayout(new GridLayout(1,3); setnew(); layoutSet(); setSize(600,100); setVisible(true); private void setnew() timelabel=new JLabel3; thread=new Thread3; for(int i=0;i3;i+) timelabeli=new JLabel(); threadi=new Thread(new RunnableOBJ(); threadi.start(); private void layoutSet() for(int i=0;i3;i+) container.add(timelabeli); pr