如何通过方法更改类内部的静态变量

Question

I have three classes:

Class One

public class One {
   private static Two object;

   public static void set_up(Two object) {
       int y = object.get();
       System.out.println(y);
   }

   public static void prn () {
       System.out.println(object.get());
   }

}  

Class Two

public class Two {
   private int x;


   public int get() {
       return x;
   }

   Two(int n){
       x = n;
   }
 }

Class Three

public class Three {
   public static void main( String[] argv ) {
       One st = new One();
       Two two = new Two(2);

       st.set_up(two);

       st.prn();
   }
}

I want to change the static variable object in class Two by method set_up(Two object) . The problem is that static variable inside the class has the same name as the arguments in the method. How can I modify set_up(Two object) so I copy values from given argument to static object?

Answer 1

You can qualify it by using the class' name:

public static void set_up(Two object) {
    One.object = object;
}