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31 files changed

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‎Collection/Collection.iml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="false">
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<output url="file://$MODULE_DIR$/target/classes" />
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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‎Collection/src/main/java/ArraysDemo.java‎

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import java.util.Arrays;
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import java.util.List;
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import java.util.Random;
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/**
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* Created with IntelliJ IDEA.
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* User: Loon
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* Date: 13-4-2
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* Time: 下午10:14
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* To change this template use File | Settings | File Templates.
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*/
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public class ArraysDemo {
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public static void main(String[] args) {
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// aslist使用
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asList();
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// 复制数组
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copyingArrays();
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// 数组排序
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sort();
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// 查找
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binarySearch();
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}
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public static void copyingArrays() {
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int[] i = new int[7];
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int[] j = new int[10];
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// 插入元素
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Arrays.fill(i, 47);
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Arrays.fill(j, 99);
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System.out.println(Arrays.toString(i));
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System.out.println(Arrays.toString(j));
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// 比较数据
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System.out.println(Arrays.equals(i,j));
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// 复制元素
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System.arraycopy(i,0,j,0,i.length);
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System.out.println(Arrays.toString(j));
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}
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public static void asList() {
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List list = Arrays.asList(1, 2, 3);
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for (Object o : list) {
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System.out.println(o);
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}
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}
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public static void hasCode() {
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Integer[] integer = {4, 5, 6};
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// 生产散列码
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System.out.println(integer.hashCode());
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}
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public static void sort() {
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String[] strings =new String[10];
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for (int i= 0;i<strings.length;i++){
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strings[i] =getRandomString(5);
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}
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System.out.println("Before sort:" + Arrays.toString(strings));
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// 按照词典编排顺序 大写在前
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Arrays.sort(strings,String.CASE_INSENSITIVE_ORDER);
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// Arrays.sort(strings);
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System.out.println("After sort:" + Arrays.toString(strings));
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}
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public static void binarySearch() {
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String[] strings =new String[10];
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for (int i= 0;i<strings.length;i++){
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strings[i] =getRandomString(5);
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}
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System.out.println(Arrays.toString(strings));
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int index = Arrays.binarySearch(strings,strings[2],String.CASE_INSENSITIVE_ORDER);
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System.out.println(index+" "+strings[index]);
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}
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// 获取随机字符串
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public static String getRandomString(int length) {
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String base = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
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Random random = new Random();
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StringBuffer sb = new StringBuffer();
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for (int i = 0; i < length; i++) {
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int number = random.nextInt(base.length());
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sb.append(base.charAt(number));
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}
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return sb.toString();
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}
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}

‎Collection/src/main/java/ListDemo.java‎

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/**
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* Created with IntelliJ IDEA.
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* User: Loon
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* Date: 13-4-2
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* Time: 下午10:35
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* To change this template use File | Settings | File Templates.
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*/
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public class ListDemo {
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public static void main(String[] args) {
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}
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}

‎Concurrency/Concurrency.iml‎

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<component name="NewModuleRootManager" inherit-compiler-output="false">
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<output url="file://$MODULE_DIR$/target/classes" />
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/resources" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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<orderEntry type="inheritedJdk" />

‎Concurrency/src/main/java/CallableDemo.java‎

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import java.util.ArrayList;
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import java.util.concurrent.*;
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/**
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* Created with IntelliJ IDEA.
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* User: Loon
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* Date: 13-4-8
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* Time: 下午10:47
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* To change this template use File | Settings | File Templates.
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*/
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public class CallableDemo {
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public static void main(String[] args) {
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ExecutorService executorService = Executors.newCachedThreadPool();
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ArrayList<Future<String>> results = new ArrayList<Future<String>>();
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for (int i = 0; i < 5; i++) {
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results.add(executorService.submit(new TaskWithResult(i)));
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}
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for (Future<String> str : results) {
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try {
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System.out.println(str.get());
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} catch (InterruptedException e) {
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e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
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} catch (ExecutionException e) {
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e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.
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} finally {
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executorService.shutdown();
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}
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}
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}
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}
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class TaskWithResult implements Callable<String> {
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private int id;
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public TaskWithResult(int id) {
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this.id = id;
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}
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@Override
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public String call() throws Exception {
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return "result of TaskWithResult :" + id;
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}
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}

‎Concurrency/src/main/java/LiftOff.java‎

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/**
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* Created with IntelliJ IDEA.
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* User: Loon
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* Date: 13-4-7
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* Time: 下午9:02
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* To change this template use File | Settings | File Templates.
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*/
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public class LiftOff implements Runnable {
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protected int countDown = 10;
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private static int taskCount = 0;
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private final int id = taskCount++;
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public LiftOff() {
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}
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public LiftOff(int countDown) {
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this.countDown = countDown;
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}
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public String stastus() {
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return "#" + id + "(" + (countDown > 0 ? countDown : "Liftoff!") + ").";
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}
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@Override
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public void run() {
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while (countDown -- >0){
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System.out.println(stastus());
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Thread.yield();
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}
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}
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}

‎Concurrency/src/main/java/MainThread.java‎

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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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* Created with IntelliJ IDEA.
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* User: Loon
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* Date: 13-4-7
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* Time: 下午9:12
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* To change this template use File | Settings | File Templates.
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*/
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public class MainThread {
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public static void main(String[] args) {
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// LiftOff lifrOff = new LiftOff();
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// lifrOff.run();
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// 1.5新特性，启动线程
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// newCachedThreadPool newSingleThreadExecutor newScheduledThreadPool newFixedThreadPool
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ExecutorService executorService = Executors.newCachedThreadPool();
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for (int i = 0; i < 5; i++)
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executorService.submit(new LiftOff());
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executorService.shutdown();
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}
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}

‎Concurrency/src/main/java/SleepingTask.java‎

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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.TimeUnit;
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/**
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* Created with IntelliJ IDEA.
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* User: Loon
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* Date: 13-4-8
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* Time: 下午10:59
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* To change this template use File | Settings | File Templates.
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*/
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public class SleepingTask extends LiftOff {
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public void run() {
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while (countDown-- > 0) {
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System.out.println(stastus());
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try {
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// Old style
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// Thread.sleep(200);
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// Java SE5 style
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TimeUnit.MILLISECONDS.sleep(200);
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} catch (InterruptedException e) {
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e.printStackTrace();
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System.err.println("Interrupted");
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}
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}
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}
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public static void main(String[] args) {
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ExecutorService executorService = Executors.newCachedThreadPool();
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for (int i = 0; i < 5; i++) {
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executorService.submit(new SleepingTask());
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}
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executorService.shutdown();
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}
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}

‎DesignPatterns/DesignPatterns.iml‎

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<?xml version="1.0" encoding="UTF-8"?>
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<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="false">
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<output url="file://$MODULE_DIR$/target/classes" />
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<output-test url="file://$MODULE_DIR$/target/test-classes" />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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<sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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<sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
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<excludeFolder url="file://$MODULE_DIR$/target" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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