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Commit 811bc24

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chenweijie
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修改线呈持续相关的操作
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7 files changed

+139
-35
lines changed

7 files changed

+139
-35
lines changed

‎src/main/java/com/chen/api/util/Integer/Test.java‎

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package com.chen.api.util.Integer;
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/**
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* 关于Integer比较大小的问题(http://www.blogjava.net/zhangyuan/archive/2010/07/24/327011.html)
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*
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* @author Chen WeiJie
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* @date 2018-01-17 15:55
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**/
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public class Test {
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@org.junit.Test
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public void test() {
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Integer a = 10;
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Integer b = 10;
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System.out.println("a==b : " + String.valueOf(a == b));
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System.out.println("a.equals(b) : " + String.valueOf(a.equals(b)));
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}
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@org.junit.Test
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public void test2() {
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Integer a = 1000;
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Integer b = 1000;
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System.out.println("a==b : " + String.valueOf(a == b));
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System.out.println("a.equals(b) : " + String.valueOf(a.equals(b)));
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}
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}

‎src/main/java/com/chen/api/util/thread/threadPool/CachedThreadExecutorTest.java‎

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This file was deleted.

‎src/main/java/com/chen/api/util/thread/threadPool/MyThread.java‎

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@Override
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public void run(){
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System.out.println(Thread.currentThread().getName()+"正在运行。。。");
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System.out.println(Thread.currentThread().getName() + "正在运行。。。");
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}
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}

‎src/main/java/com/chen/api/util/thread/threadPool/NewCacheThreadExecutor.java‎

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package com.chen.api.util.thread.threadPool;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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/**
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* 可缓存线程池，当线程池大小超过了处理任务所需的线程，那么就会回收部分空闲（一般是60秒无执行）的线程，当有任务来时，又智能的添加新线程来执行。
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*
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* @author Chen WeiJie
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* @date 2018-04-03 17:28
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**/
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public class NewCacheThreadExecutor {
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public static void main(String[] args) {
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//创建一个可重用固定线程数的线程池
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ExecutorService pool = Executors.newCachedThreadPool();
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//创建实现了Runnable接口对象
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Thread t1 = new MyThread();
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Thread t2 = new MyThread();
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Thread t3 = new MyThread();
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Thread t4 = new MyThread();
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Thread t5 = new MyThread();
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//将线程放入池中进行执行
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pool.execute(t1);
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pool.execute(t2);
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pool.execute(t3);
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pool.execute(t4);
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pool.execute(t5);
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//关闭线程池
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pool.shutdown();
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}
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}

‎src/main/java/com/chen/api/util/thread/threadPool/NewSingleThreadExecutor.java‎

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package com.chen.api.util.thread.threadPool;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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/**
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* 单个线程的线程池，单线程串行执行任务
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*
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* @author Chen WeiJie
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* @date 2018-04-03 16:58
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**/
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public class NewSingleThreadExecutor {
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public static void main(String[] args) {
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ExecutorService pool = Executors.newSingleThreadExecutor();
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MyThread t1 = new MyThread();
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MyThread t2 = new MyThread();
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MyThread t3 = new MyThread();
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MyThread t4 = new MyThread();
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pool.execute(t1);
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pool.execute(t2);
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pool.execute(t3);
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pool.execute(t4);
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pool.shutdown();
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}
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}

‎src/main/java/com/chen/util/BitCalc.java‎

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package com.chen.util;
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/**
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* 位运算例子
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*
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* @author Chen WeiJie
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* @date 2018-03-23 14:58
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**/
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public class BitCalc {
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public static void main(String[] args) {
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int a = 60; /* 60 = 0011 1100 */
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int b = 13; /* 13 = 0000 1101 */
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int c = 0;
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c = a & b; /* 12 = 0000 1100 */
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System.out.println("a & b = " + c);
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c = a | b; /* 61 = 0011 1101 */
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System.out.println("a | b = " + c);
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c = a ^ b; /* 49 = 0011 0001 */
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System.out.println("a ^ b = " + c);
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c = ~a; /*-61 = 1100 0011 */
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System.out.println("~a = " + c);
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c = a << 2; /* 240 = 1111 0000 */
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System.out.println("a << 2 = " + c);
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c = a >> 2; /* 15 = 1111 */
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System.out.println("a >> 2 = " + c);
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c = a >>> 2; /* 15 = 0000 1111 */
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System.out.println("a >>> 2 = " + c);
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}
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}

‎src/main/test/com/chen/test/TestStringFormat.java‎

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System.out.println(index4);
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System.out.println(index5);
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String index6 = String.format("%01d", 10025 % 10);
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System.out.println(index6);
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double l=Math.pow(10,6);
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System.out.println(l);
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}
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}

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