1.8.3suspend与resume方法的缺点--不同步

 package com.cky.bean;

 /**
  * Created by edison on 2017/12/3.
  */
 public class MyObject {
     private String usrName = "1";
     private String pwd ="11";
     public void setValue(String u, String p) {
         this.usrName = u;
         if (Thread.currentThread().getName().equals("a")) {
             System.out.println("停止a线程");
             Thread.currentThread().suspend();
         }
         this.pwd =p;
     }

     public void printNameAndPwd() {
         System.out.println(usrName +":"+pwd);
     }
 }

 package com.cky.test;

 import com.cky.bean.MyObject;

 /**
  * Created by edison on 2017/12/3.
  */
 public class Run2 {
     public static void main(String[] args) {
         try {
             final MyObject myObject = new MyObject();
             Thread th1=new Thread(){
                 @Override
                 public void run() {
                     super.run();
                     myObject.setValue("a", "aa");
                 }
             };
             th1.setName("a");
             th1.start();
             Thread.sleep(500);
             Thread th2=new Thread(){
                 @Override
                 public void run() {
                     super.run();
                     myObject.printNameAndPwd();
                 }
             };
             th2.start();
         } catch (InterruptedException e) {
             e.printStackTrace();
         }

     }
 }

C:\itsoft\jdk\bin\java -Didea.launcher.port=7538 "-Didea.launcher.bin.path=C:\itsoft\idea\IntelliJ IDEA 2016.3.3\bin" -Dfile.encoding=UTF-8 -classpath "C:\itsoft\jdk\jre\lib\charsets.jar;C:\itsoft\jdk\jre\lib\deploy.jar;C:\itsoft\jdk\jre\lib\ext\access-bridge-32.jar;C:\itsoft\jdk\jre\lib\ext\cldrdata.jar;C:\itsoft\jdk\jre\lib\ext\dnsns.jar;C:\itsoft\jdk\jre\lib\ext\jaccess.jar;C:\itsoft\jdk\jre\lib\ext\jfxrt.jar;C:\itsoft\jdk\jre\lib\ext\localedata.jar;C:\itsoft\jdk\jre\lib\ext\nashorn.jar;C:\itsoft\jdk\jre\lib\ext\sunec.jar;C:\itsoft\jdk\jre\lib\ext\sunjce_provider.jar;C:\itsoft\jdk\jre\lib\ext\sunmscapi.jar;C:\itsoft\jdk\jre\lib\ext\sunpkcs11.jar;C:\itsoft\jdk\jre\lib\ext\zipfs.jar;C:\itsoft\jdk\jre\lib\javaws.jar;C:\itsoft\jdk\jre\lib\jce.jar;C:\itsoft\jdk\jre\lib\jfr.jar;C:\itsoft\jdk\jre\lib\jfxswt.jar;C:\itsoft\jdk\jre\lib\jsse.jar;C:\itsoft\jdk\jre\lib\management-agent.jar;C:\itsoft\jdk\jre\lib\plugin.jar;C:\itsoft\jdk\jre\lib\resources.jar;C:\itsoft\jdk\jre\lib\rt.jar;C:\多线程核心技术\第一章\out\production\第一章;C:\itsoft\idea\IntelliJ IDEA 2016.3.3\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain com.cky.test.Run2
停止a线程
a:11

结果不同步，程序中使用suspend()得注意。