Java中同一线程中的对象hashcode一样

在同一个线程中创建的是统一个对像，获取的hashcode值是一样的，直接上代码了，写的不好不要介意！

public static void main(String[] args) {

for (int i = 0; i < 2; i++) {

new Thread(new Runnable() {

@Override

public void run() {

UserService us = UserService.getInstance();

System.out.println(Thread.currentThread().getName()+" "+us );

A a = new A();

B b = new B();

a.print();

b.print();

}

}).start();

}

}

static class A{

public void print() {

UserService us = UserService.getInstance();

System.out.println("从A中获取："+Thread.currentThread().getName()+"..."+us);

}

}

static class B{

public void print() {

UserService us = UserService.getInstance();

System.out.println("从B中获取："+Thread.currentThread().getName()+"..."+us);

}

}

}

打印：

Thread-0 com.test.UserService@10b7ce35

Thread-1 com.test.UserService@407e3dad

从A中获取：Thread-1...com.test.UserService@407e3dad

从A中获取：Thread-0...com.test.UserService@10b7ce35

从B中获取：Thread-0...com.test.UserService@10b7ce35

从B中获取：Thread-1...com.test.UserService@407e3dad