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java-multithread communication更新至example16,本包告一段落
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‎blogs/README.md‎

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# 博客目录
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# 博客
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如果你只是单纯要阅读的话，建议移步CSDN或者oschina上观看，访问速度快很多：
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>* CSDN:[我的java&javaweb学习笔记(汇总)](http://blog.csdn.net/h3243212/article/details/50659471)
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>* oschina:[我的java&javaweb学习笔记(汇总)](http://my.oschina.net/brianway/blog/614355)
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# 目录
210

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- [javase](/blogs/javase)
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- [java基础巩固笔记(1)-反射.md](/blogs/javase/java基础巩固笔记(1)-反射.md)

‎java-base/src/main/java/com/brianway/learning/java/base/Boxing.java‎

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package com.brianway.learning.java.base;
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/**
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* Created by Brian on 2016/4/14.
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*/
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/**
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* 待理解。
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* 应该是考装箱和拆箱
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*/
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public class Boxing {
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public static void main(String[] args) {
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Integer a = 1;
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Integer b = 2;
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Integer c = 3;
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Integer d = 3;
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Integer e = 321;
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Integer f = 321;
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Long g = 3L;
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System.out.println(c == d);
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System.out.println(e == f);
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System.out.println(c == (a + b));
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System.out.println(c.equals(a + b));
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System.out.println(g == (a + b));
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System.out.println(g.equals(a + b));
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}
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}
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/*
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输出：
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true
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false
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true
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true
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true
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false
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*/

‎java-base/src/main/java/com/brianway/learning/java/base/constructor/FatherClass.java‎

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package com.brianway.learning.java.base.constructor;
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/**
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* Created by Brian on 2016/4/14.
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*/
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public class FatherClass {
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private String name;
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public FatherClass(){
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System.out.println("执行了父类的无参构造方法");
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}
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public FatherClass(String name) {
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this.name = name;
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System.out.println("执行了父类的构造方法FatherClass(String name)");
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}
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}

‎java-base/src/main/java/com/brianway/learning/java/base/constructor/SonClass.java‎

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package com.brianway.learning.java.base.constructor;
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/**
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* Created by Brian on 2016/4/14.
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*/
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/**
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* 构造方法调用问题
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* 子类构造方法会首先默认调用父类的无参构造方法，无论是否显式写了super();
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*/
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public class SonClass extends FatherClass{
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public SonClass(String name) {
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//super(name);
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System.out.println("执行了子类的构造方法SonClass(String name)");
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}
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public SonClass() {
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System.out.println("执行了子类的无参构造方法");
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}
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public static void main(String[] args) {
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new SonClass("aaa");
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new SonClass();
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}
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}
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/*
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执行了父类的无参构造方法
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执行了子类的构造方法SonClass(String name)
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执行了父类的无参构造方法
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执行了子类的无参构造方法
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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example12/ReadData.java‎

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package com.brianway.learning.java.multithread.communication.example12;
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import java.io.IOException;
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import java.io.PipedInputStream;
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/**
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* Created by Brian on 2016/4/14.
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*/
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public class ReadData {
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public void readMethod(PipedInputStream input){
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try {
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System.out.println("read :");
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byte[]bytes = new byte[20];
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int readLength = input.read(bytes);
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while (readLength!=-1){
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String newData = new String(bytes,0,readLength);
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System.out.print(newData);
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readLength = input.read(bytes);
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}
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} catch (IOException 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/communication/example12/Run12_pipeInputOutput.java‎

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package com.brianway.learning.java.multithread.communication.example12;
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import java.io.IOException;
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import java.io.PipedInputStream;
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import java.io.PipedOutputStream;
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/**
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* Created by Brian on 2016/4/14.
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*/
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/**
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* P173
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* 通过管道进行线程间通信：字节流
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*
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* 字符流PipedWriter,PipedReader,同理。
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*/
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public class Run12_pipeInputOutput {
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public static void main(String[] args) {
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try {
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WriteData writeData = new WriteData();
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ReadData readData = new ReadData();
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PipedInputStream inputStream = new PipedInputStream();
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PipedOutputStream outputStream = new PipedOutputStream();
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//inputStream.connect(outputStream);
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outputStream.connect(inputStream);
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ThreadRead threadRead = new ThreadRead(readData,inputStream);
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threadRead.start();
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Thread.sleep(2000);
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ThreadWrite threadWrite = new ThreadWrite(writeData,outputStream);
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threadWrite.start();
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} catch (IOException e) {
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e.printStackTrace();
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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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read :
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write :
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300
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--------------
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取消注释//inputStream.connect(outputStream);
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输出：
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java.io.IOException: Already connected
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at java.io.PipedOutputStream.connect(PipedOutputStream.java:100)
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at com.brianway.learning.java.multithread.communication.example12.Run12_pipeInputOutput.main(Run12_pipeInputOutput.java:25)
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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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*/

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example12/ThreadRead.java‎

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package com.brianway.learning.java.multithread.communication.example12;
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import java.io.PipedInputStream;
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/**
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* Created by Brian on 2016/4/14.
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*/
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public class ThreadRead extends Thread {
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private ReadData read;
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private PipedInputStream input;
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public ThreadRead(ReadData read,PipedInputStream input) {
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super();
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this.input = input;
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this.read = read;
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}
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@Override
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public void run() {
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read.readMethod(input);
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example12/ThreadWrite.java‎

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package com.brianway.learning.java.multithread.communication.example12;
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import java.io.PipedOutputStream;
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/**
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* Created by Brian on 2016/4/14.
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*/
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public class ThreadWrite extends Thread{
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private WriteData write;
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private PipedOutputStream out;
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public ThreadWrite(WriteData write, PipedOutputStream out) {
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super();
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this.write = write;
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this.out = out;
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}
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@Override
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public void run() {
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write.writeMethod(out);
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}
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}

‎java-multithread/src/main/java/com/brianway/learning/java/multithread/communication/example12/WriteData.java‎

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package com.brianway.learning.java.multithread.communication.example12;
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import java.io.IOException;
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import java.io.PipedOutputStream;
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/**
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* Created by Brian on 2016/4/14.
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*/
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public class WriteData {
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public void writeMethod(PipedOutputStream out){
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try {
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System.out.println("write :");
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for(int i=0;i<300;i++){
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String outData = "" + (i+1);
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out.write(outData.getBytes());
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System.out.print(outData);
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}
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System.out.println();
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out.close();
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} catch (IOException 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/communication/example13/BackupA.java‎

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package com.brianway.learning.java.multithread.communication.example13;
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/**
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* Created by Brian on 2016/4/14.
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*/
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public class BackupA extends Thread {
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private DBTools dbTools;
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public BackupA(DBTools dbTools) {
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super();
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this.dbTools = dbTools;
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}
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@Override
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public void run() {
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dbTools.backupA();
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}
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}

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