public static void main(String[] args) {

        Thread [] threadArr=new Thread[10];

        for (Thread item:threadArr)

        {

            item=new Thread(){

                @Override

                public void run()

                {

                    try {

                        int num = Employee.setNum();

                        System.out.println(String.format("线程:%d的Num值是%d",super.getId(),num));

                    }

                    catch (Exception ex){

                    }

                }

            };

            item.start();

        }

        try{

            System.in.read();

        }

        catch (Exception ex)

        {

        }

}

class Employee {

 static {

        num=0;

    }

   static int num;

    public static int getNum()

    {

        return num;

    }

    public static int setNum()

    {

        num ++;

        return getNum();

    }

}

线程:19的Num值是7

线程:15的Num值是2

线程:13的Num值是1

线程:18的Num值是9

线程:14的Num值是8

线程:22的Num值是10

线程:17的Num值是3

线程:16的Num值是4

线程:21的Num值是6

线程:20的Num值是5