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package test.thread;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.util.Date;
/**
* ¶àÏ̶߳Áдͬһ¸öÎļþµÄÑùÀý¡£
*/
public class ThreadReadWrite {
public static void main(String[] args) {
new ThreadWrite().start();
try {
Thread.sleep(2000); // ÐÝÃߣ¬ÒÔÃâÄÇÃ滹ÓÐдºÃ
} catch (InterruptedException e) {
e.printStackTrace();
}
new ThreadRead().start();
}
}
class ThreadWrite extends Thread {
File file = new File("test.txt");
@Override
public void run() {
try {
while (true) {
FileWriter out = new FileWriter(file, true);// ×·¼ÓдÈë
out.write(new Date() + "\n");
out.flush();
out.close();
Thread.sleep(3000); // ÎÒÕâÀï¼ä¸ô¸Ä³É3Ã룬·½±ã²âÊÔ
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
class ThreadRead extends Thread {
File file = new File("test.txt");
@Override
public void run() {
try {
BufferedReader reader = new BufferedReader(new FileReader(file));
while (true) {
System.out.println(reader.readLine());
Thread.sleep(3000); // ÎÒÕâÀï¼ä¸ô¸Ä³É3
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package com.yzy;
import java.util.regex.*;
public class Test {
/**
* @param args
*/
public static void main(String[] args) {
Pattern p=Pattern.compile("^[a-z]+");
Matcher m=p.matcher("a233"); //true
//Matcher m=p.matcher("2233") ......