增加测试类

src/test/java/com/jsh/test/MyRunnable.java

@@ -0,0 +1,9 @@
+package com.jsh.test;
+
+public class MyRunnable implements Runnable {//实现Runnable接口
+    public void run(){
+        for(int i=0; i<30; i++){
+            System.out.println(Thread.currentThread().getName()+"运行,  "+i);  //获取当前线程的名称
+        }
+    }
+}

src/test/java/com/jsh/test/MyThread.java

@@ -0,0 +1,10 @@
+package com.jsh.test;
+
+public class MyThread {
+	public static void main(String[] args) {
+		for (int i = 0; i < 3; i++) {
+			MyRunnable  mt = new MyRunnable();    //定义Runnable子类对象
+			new Thread(mt, "第" + i + "个线程").start();
+		}
+	}
+}