// 实现接口 class MonkeyHair implements Runnable { private final String name; private Thread thread; MonkeyHair(String name) { this.name = name; } @Override public void run() { System.out.println("线程" + name + "运行开始"); try { Thread.sleep(10); } catch (InterruptedException e) { System.out.println("Thread " + name + "运行异常" + e.getMessage()); } System.out.println("线程" + name + "运行结束"); } public void start() { System.out.println(name + "线程开始启动"); if (thread == null) { thread = new Thread(this, name); thread.start(); } } } // 具体调用 MonkeyHair m1 = new MonkeyHair("猴子1"); MonkeyHair m2 = new MonkeyHair("猴子2"); MonkeyHair m3 = new MonkeyHair("猴子3"); m1.start(); m2.start(); m3.start();
public class test { public static void main(String[] args) { &...
public class test { public static void main(String[] args) { &...
(1).java获取当前日期时间Date date = new Date(); System.out.println(date.toString());输出Fri Jul 02 10:29:55 CST 2021(2).java获取时间戳秒/毫秒D...
java匹配一个字符串在另外一个字符串中出现的次数,java正则start,java正则end// 正则 String pattern = "\\bgao\\b"; // 字符串 String content ...
假如有个字符串为"fatcatfatcatfat",正则为“cat”当调用appendReplacement(sb, "dog")时appendReplacement方法都会把匹配到的内容替换为dog,并把匹配到字符串的前面几个字符串+dog送给sb里,所以第...
java 可变参数// 定义方法 public static int sum(int... number) { int result = 0; &nb...