JAVA新手 求解

public class One{
    public static void main(String abc[]){
        System.out.println(1111);
        NanRen nan = new NanRen();
        nan.setAge(10);
        System.out.println(nan.getAge());
    }
    class NanRen{
        private String name;
        private int age;
        public void setAge(int a){
            age=a;
        }
        public int getAge(){
            return age;
        }
    }
   
    class Women{
        private String xiong;
        private int size;
        public void setSize(int a){
            size=a;
        }
        public int getSize(){
            return size ;
        }
        
    }
   
}