java - Can somebody please explain me this output of polymorphism? -

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heres code :

class a{     int data=10;     void show1(){         system.out.println("in a="+data);     } }  class b extends a{     int data=20;     void show2(){         system.out.println("in b="+data);     }    }   public class overriding4 {     public static void main(string args[]){         b b=new b();         system.out.println("data1="+b.data);         system.out.println("data2="+b.data);         b.show1();         b.show2();     } }

and heres output :

data1=20 data2=20 in a=10 in b=20

the output @ data1=20 should 10 , not 20...but think i'm missing here. please me this

okay , help, 1 new doubt : happen if changed main method :

 public static void main(string args[]){             a=new b();             system.out.println("data1="+a.data);             system.out.println("data2="+a.data);             a.show1();             a.show2();         }

there go.

class fields don't inherited. note have same int data field in both classes a , b. called hiding.


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