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java-multithread supplement包更新至example6,告一段落 · JavaDevelopRep/java-learning@9732c15 · GitHub

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java-multithread supplement包更新至example6,告一段落
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‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/MyService.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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public class MyService {
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synchronized static public void serviveMethod(){
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try {
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System.out.println(Thread.currentThread().getName()+" 进入了业务方法");
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Thread.sleep(10000);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/Run1_state1.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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/**
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* P280
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* 验证NEW,RUNNABLE,TERMINATED
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*/
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public class Run1_state1 {
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public static void main(String[] args) {
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try {
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Thread1 t = new Thread1();
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System.out.println("main方法中的状态1："+t.getState()+" of "+t.getName());
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Thread.sleep(1000);
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t.start();
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Thread.sleep(1000);
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System.out.println("main方法中的状态2："+t.getState()+" of "+t.getName());
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}
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/*
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输出：
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构造方法中的状态：NEW of Thread-0
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构造方法中的状态：RUNNABLE of main
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main方法中的状态1：NEW of Thread-0
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run方法中的状态：RUNNABLE of Thread-0
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run方法中的状态：RUNNABLE of Thread-0
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main方法中的状态2：TERMINATED of Thread-0
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/Run1_state2.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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/**
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* P282
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* 验证TIMED_WAITING
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*/
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public class Run1_state2 {
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public static void main(String[] args) {
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try {
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Thread2 t = new Thread2();
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t.start();
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Thread.sleep(1000);
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System.out.println("main方法中的状态："+t.getState()+" of "+t.getName());
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}
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/*
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输出：
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begin sleep,run方法中的状态：RUNNABLE of Thread-0
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begin sleep,run方法中的状态：RUNNABLE of Thread-0
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main方法中的状态：TIMED_WAITING of Thread-0
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end sleep,run方法中的状态：RUNNABLE of Thread-0
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end sleep,run方法中的状态：RUNNABLE of Thread-0
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/Run1_state3.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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/**
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* P283
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* 验证BLOCKED
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*/
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public class Run1_state3 {
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public static void main(String[] args) {
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try {
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Thread3 t1 = new Thread3();
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t1.setName("a");
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t1.start();
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Thread3 t2 = new Thread3();
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t2.setName("b");
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t2.start();
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Thread.sleep(1000);
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System.out.println("main方法中的t2状态："+t2.getState());
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}
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/*
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输出：
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a 进入了业务方法
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main方法中的t2状态：BLOCKED
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b 进入了业务方法
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/Thread1.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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public class Thread1 extends Thread{
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public Thread1() {
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System.out.println("构造方法中的状态："+this.getState()+" of "+this.getName());
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System.out.println("构造方法中的状态："+Thread.currentThread().getState()+" of "+Thread.currentThread().getName());
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}
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@Override
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public void run() {
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System.out.println("run方法中的状态："+this.getState()+" of "+this.getName());
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System.out.println("run方法中的状态："+Thread.currentThread().getState()+" of "+Thread.currentThread().getName());
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/Thread2.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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public class Thread2 extends Thread{
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@Override
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public void run() {
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try {
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System.out.println("begin sleep,run方法中的状态："+this.getState()+" of "+this.getName());
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System.out.println("begin sleep,run方法中的状态："+Thread.currentThread().getState()+" of "+Thread.currentThread().getName());
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Thread.sleep(10000);
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System.out.println("end sleep,run方法中的状态："+this.getState()+" of "+this.getName());
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System.out.println("end sleep,run方法中的状态："+Thread.currentThread().getState()+" of "+Thread.currentThread().getName());
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example1/Thread3.java‎

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package com.brianway.learning.java.multithread.supplement.example1;
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/**
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* Created by Brian on 2016/4/17.
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*/
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public class Thread3 extends Thread{
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@Override
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public void run() {
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MyService.serviveMethod();
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example2/MyThread.java‎

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package com.brianway.learning.java.multithread.supplement.example2;
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import sun.security.provider.SHA;
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/**
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* Created by Brian on 2016/4/17.
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*/
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/**
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* 取消System.out.println的注释能看到更多细节
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*/
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public class MyThread extends Thread {
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private Object lock;
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private String showChar;
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private int showNumPosition;
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private int printCount = 0;//统计打印了几个字母
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volatile private static int addNumber = 1;
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public MyThread(Object lock, String showChar, int showNumPosition) {
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this.lock = lock;
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this.showChar = showChar;
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this.showNumPosition = showNumPosition;
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}
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@Override
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public void run() {
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try {
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synchronized (lock){
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//System.out.println("ThreadName="+ Thread.currentThread().getName()+" get the lock");
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while (true){
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if(addNumber % 3 == showNumPosition){
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System.out.println("ThreadName="+ Thread.currentThread().getName()
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+" runCount = "+addNumber+ " "+ showChar);
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lock.notifyAll();
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addNumber++;
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printCount++;
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if(printCount == 3){break;}
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}else {
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//System.out.println("ThreadName="+ Thread.currentThread().getName()+" will await");
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lock.wait();
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//System.out.println("ThreadName="+ Thread.currentThread().getName()+" after await");
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}
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}
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}
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example2/Run2_autoAddGroup.java‎

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package com.brianway.learning.java.multithread.supplement.example2;
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/**
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* Created by Brian on 2016/4/17.
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*/
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/**
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* 线程组自动归属特性
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*/
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public class Run2_autoAddGroup {
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public static void main(String[] args) {
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System.out.println("A处线程："+Thread.currentThread().getName()
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+" 所属的线程组名为："+Thread.currentThread().getThreadGroup().getName()
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+" 中有线程组数量："+ Thread.currentThread().getThreadGroup().activeGroupCount());
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ThreadGroup group = new ThreadGroup("新的组");
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System.out.println("A处线程："+Thread.currentThread().getName()
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+" 所属的线程组名为："+Thread.currentThread().getThreadGroup().getName()
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+" 中有线程组数量："+ Thread.currentThread().getThreadGroup().activeGroupCount());
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ThreadGroup[] threadGroup = new ThreadGroup[Thread.currentThread().getThreadGroup().activeGroupCount()];
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Thread.currentThread().getThreadGroup().enumerate(threadGroup);
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for(int i=0;i<threadGroup.length;i++){
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System.out.println("第一个线程组名称为："+ threadGroup[i].getName());
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}
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}
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}
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/*
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输出：
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A处线程：main 所属的线程组名为：main 中有线程组数量：0
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A处线程：main 所属的线程组名为：main 中有线程组数量：1
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第一个线程组名称为：新的组
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/supplement/example2/Run2_getGroupParent.java‎

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package com.brianway.learning.java.multithread.supplement.example2;
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/**
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* Created by Brian on 2016/4/17.
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*/
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/**
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* p288
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* 获取根线程组
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* JVM根线程组就是system
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*/
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public class Run2_getGroupParent {
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public static void main(String[] args) {
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System.out.println("线程："+ Thread.currentThread().getName()
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+ " 所在的线程组名为：" +Thread.currentThread().getThreadGroup().getName());
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System.out.println("main线程所在的线程组的父线程组名为："
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+Thread.currentThread().getThreadGroup().getParent().getName());
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System.out.println("main线程所在的线程组的父线程组的父线程组名为："
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+Thread.currentThread().getThreadGroup().getParent().getParent().getName());
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}
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}
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/*
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输出：
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线程：main 所在的线程组名为：main
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main线程所在的线程组的父线程组名为：system
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Exception in thread "main" java.lang.NullPointerException
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at com.brianway.learning.java.multithread.supplement.example2.Run2_getGroupParent.main(Run2_getGroupParent.java:20)
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at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
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at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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at java.lang.reflect.Method.invoke(Method.java:483)
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at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)
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*/

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