原子操作AtomicReference

Posted 2021-06-24 kixxz

/**
 *代码演示：演示引用类型的原子操作类
 */
public class UseAtomicReference {
　　　//原子操作类
    static AtomicReference<UserInfo> atomicUserRef;

    public static void main(String[] args) {
        UserInfo user = new UserInfo("Mark", 15);//要修改的实体的实例
        atomicUserRef = new AtomicReference(user);　　
        UserInfo updateUser = new UserInfo("Bill",17);  //修改后的类
        atomicUserRef.compareAndSet(user,updateUser);　　//修改

        System.out.println(atomicUserRef.get());
        System.out.println(user);
    }
    
    //定义一个实体类
    static class UserInfo {
        private volatile String name;
        private int age;
        public UserInfo(String name, int age) {
            this.name = name;
            this.age = age;
        }
        public String getName() {
            return name;
        }
        public int getAge() {
            return age;
        }

        @Override
        public String toString() {
            return "UserInfo{" +
                    "name=\'" + name + \'\\\'\' +
                    ", age=" + age +
                    \'}\';
        }
    }

}