public class Count {
    private int num;
    //public void count() {
    //    for(int i = 1; i <= 100; i  ) {
    //        num  = i;
    //    }
    //    System.out.println(Thread.currentThread().getName()   "-"   num);
    //}

    public int getNum() {
        return num;
    }

    public void increment(int i) {
        num = num   i;
    }
}

public class ThreadTest {
    public static void main(String[] args) {
        Runnable runnable = new Runnable() {
            Count count = new Count();
            @Override
            public void run() {
                for (int i = 0; i < 1000; i  ) {
                    count.increment(1);
                }
                System.out.println(Thread.currentThread().getName()   "-"   count.getNum());
                try {
                    Thread.sleep(2);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };

        for(int i = 0; i < 10; i  ) {
            Thread thread = new Thread(runnable);
            thread.start();
        }
    }
}

Thread-0-1660
Thread-2-2660
Thread-3-3660
Thread-1-1660
Thread-4-4882
Thread-5-5579
Thread-6-6579
Thread-7-7579
Thread-8-8579
Thread-9-9579

public class Count {
    public void count() {
        int number = 0;
        for(int i = 0; i < 1000; i  ) {
            number  = 1;
        }
        System.out.println(Thread.currentThread().getName()   "-"   number);
    }
}

public class ThreadTest {
    public static void main(String[] args) {
        Runnable runnable = new Runnable() {
            Count count = new Count();
            @Override
            public void run() {
                count.count();
                try {
                    Thread.sleep(2);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };

        for(int i = 0; i < 10; i  ) {
            Thread thread = new Thread(runnable);
            thread.start();
        }
    }
}

Thread-0-1000
Thread-3-1000
Thread-4-1000
Thread-1-1000
Thread-2-1000
Thread-5-1000
Thread-6-1000
Thread-7-1000
Thread-8-1000
Thread-9-1000

public class ThreadTest {
    public static void main(String[] args) {
        Runnable runnable = new Runnable() {
            @Override
            public void run() {
                Count count = new Count();
                for (int i = 0; i < 1000; i  ) {
                    count.increment(1);
                }
                System.out.println(Thread.currentThread().getName()   "-"   count.getNum());
                try {
                    Thread.sleep(2);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        };

        for(int i = 0; i < 10; i  ) {
            Thread thread = new Thread(runnable);
            thread.start();
        }
    }
}

Thread-1-1000
Thread-3-1000
Thread-2-1000
Thread-0-1000
Thread-5-1000
Thread-4-1000
Thread-6-1000
Thread-7-1000
Thread-8-1000
Thread-9-1000

 
  END
 


 十期推荐
 
  【241期】面试官：你了解JVM中的ZGC垃圾收集器吗？
  

 
 
  【242期】面试官：Spring AOP有哪些通知类型，它们的执行顺序是怎样的？
  

 
 
  【243期】面试官：什么是前缀索引、为什么要用前缀使用、用在什么场景下？
  

 
 
  【244期】万字 图解 Redis，面试不用愁了！
 
 
  【245期】面试官：MySQL发生死锁有哪些原因，怎么避免？
  

 
 
  【246期】面试官：说说你对 RabbitMQ 的理解以及使用它的场景
  

 
 
  【247期】记一次Java面试中遇到的三个问题及感悟！
  

 
 
  【248期】面试官：你能说几个Java8中Stream对列表去重的方法吗？
  

 
 
  【249期】关于Java中的异常，面试可以问的都在这里了！
  

 
 
  【250期】关于Mybatis知识点，面试可以问的都在这里了！
 
 

？ ~