16.同步类容器Collections.synchronized

Posted 2020-10-01 永恒之心

voctor动态数组、同步类容器，底层实现基于：Collections.synchronized

package demo5; import java.util.ArrayList; import java.util.Collections; import java.util.List; import java.util.Vector; /** * Created by liudan on 2017/7/9. */ public class MyThread2 extends Thread { /*同步类容器、动态数组*/ public static void main(String[] args) { /*final Vector<String> ticksts = new Vector<>();*/ List<String> ticksts = Collections.synchronizedList(new ArrayList<String>()); for (int i = 1; i <= 100; i++) { ticksts.add("G1001-火车票-G000X" + i); } for (int i = 1; i <= 10; i++) { new Thread("线程" + i) { @Override public void run() { while (true) { if (ticksts.isEmpty()) break; System.err.println(Thread.currentThread().getName() + "\t" + ticksts.remove(0)); } } }.start(); } } } 输出： 线程001 G1001-火车票-G000X1 线程001 G1001-火车票-G000X2 线程001 G1001-火车票-G000X3 线程001 G1001-火车票-G000X4 线程002 G1001-火车票-G000X5 线程002 G1001-火车票-G000X7 线程001 G1001-火车票-G000X6 线程001 G1001-火车票-G000X9 线程001 G1001-火车票-G000X10 线程002 G1001-火车票-G000X8

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package demo5;

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import java.util.ArrayList;

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import java.util.Collections;

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import java.util.List;

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import java.util.Vector;

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/**

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 * Created by liudan on 2017/7/9.

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 */

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public class MyThread2 extends Thread {

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    /*同步类容器、动态数组*/

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    public static void main(String[] args) {

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        /*final Vector<String> ticksts = new Vector<>();*/

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        List<String> ticksts = Collections.synchronizedList(new ArrayList<String>());

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        for (int i = 1; i <= 100; i++) {

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            ticksts.add("G1001-火车票-G000X" + i);

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        }

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        for (int i = 1; i <= 10; i++) {

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            new Thread("线程" + i) {

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                @Override

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                public void run() {

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                    while (true) {

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                        if (ticksts.isEmpty()) break;

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                        System.err.println(Thread.currentThread().getName() + "\t" + ticksts.remove(0));

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                    }

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                }

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            }.start();

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        }

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    }

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}

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输出：

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线程001   G1001-火车票-G000X1

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线程001   G1001-火车票-G000X2

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线程001   G1001-火车票-G000X3

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线程001   G1001-火车票-G000X4

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线程002   G1001-火车票-G000X5

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线程002   G1001-火车票-G000X7

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线程001   G1001-火车票-G000X6

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线程001   G1001-火车票-G000X9

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线程001   G1001-火车票-G000X10

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线程002   G1001-火车票-G000X8

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