java synchronized加载加锁-线程可重入详解及实例代码

public class ReGetLock implements Runnable {  @Override  public void run() {    get();  }  public synchronized void get() {    System.out.println(Thread.currentThread().getId());    set();  }  public synchronized void set() {    System.out.println(Thread.currentThread().getId());  }  public static void main(String[] args) {    ReGetLock rgl = new ReGetLock();    new Thread(rgl).start();  }}