杂七杂八

来源：互联网发布：python 替换字符串编辑：程序博客网时间：2024/06/07 19:19

public static String output(String max, String min) {for (int i = min.length(); i > 0; i--) {for (int j = 0; j + i <= min.length(); j++) {String common  = min.substring(j,j+i);if(max.indexOf(common)>0){return common;}}}return null;}

字符串倒序的方法

public String func(String s){return s.length()>0?s.substring(1)+s.charAt(0):"";}

四大组件的生命周期：BroadcastReceiver onReceive（）方法。 ContentProvider

线程通信：生产者消费者

class Resource{private int count=0;public int getCount() {return count;}public void setCount(int count) {this.count = count;}private int max = 5;public synchronized void produce() {while(count+1>=max){try {wait();} catch (InterruptedException e) {e.printStackTrace();}}count+=1;System.out.println(Thread.currentThread().getName()+"生产了一个，现在count="+count);this.notify();}public synchronized void consume() {while(count-1<=0){try {wait();} catch (InterruptedException e) {e.printStackTrace();}}count -=1;System.out.println(Thread.currentThread().getName()+"消费了一个，现在count="+count);this.notify();}}class Producer implements Runnable{private Resource resource;public Producer() {}public Producer(Resource resource) {this.resource = resource;}@Overridepublic void run() {for (int i = 0; i < 5; i++) {//while(true){resource.produce();//}}}}class Consumer implements Runnable{private Resource resource;public Consumer() {super();}public Consumer(Resource resource) {super();this.resource = resource;}@Overridepublic void run() {for (int i = 0; i < 5; i++) {//while(true){resource.consume();//}}}}

UI线程与非UI线程交互

class UIThread extends Thread{public void run(){while(count<101){bar.post(new Runnable(){@Overridepublic void run() {bar.setProgress(count);count++;}});try {Thread.sleep(1000);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}class ActivityUiThread extends Thread{public void run(){while(count<101){runOnUiThread(new Runnable(){@Overridepublic void run() {bar.setProgress(count);count++;}});//线程阻塞}}}//handlerThread.start();启动private HandlerThread handlerThread = new HandlerThread(""){private Handler handler = new Handler(){public void handleMessage(){count++;bar.setProgress(count);}};};class ChildThread extends Thread{private Handler handler = new Handler(){public void handleMessage(){}};}public void run(){Looper.prepare();while(count<101){bar.setProgress(count);}Looper.loop();}

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