why child class object refer parent class value

Asked Sep 03 '20 at 07:23

Active Sep 03 '20 at 07:26

Viewed 28 times

While trying to hands on the code I did not understand this portion

public class parent {
    int a =5;
    parent(){
        this.a =7;
    }

    void print() {
        System.out.println("In parent");
        System.out.println(this.a);
    }

}

public class child extends parent{
    int a =8;
    child(){
    }
    void print() {
        System.out.println("In child" + this.getClass().getName());      
        System.out.println(this.a);
    } 
    public static void main(String args[]) {
        parent childobj = new child();
        childobj.print();                      
        System.out.println(childobj.a);
    }
}

While childobj.print() print 8 why childobj.a will print 7 as this refers the same object?

edited Sep 03 '20 at 07:26

khelwood

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asked Sep 03 '20 at 07:23

abhishek

1

Because `child.a` and `parent.a` are two different fields with the same name, and fields don't override. – khelwood Sep 03 '20 at 07:25
1

Unrelated: please follow java naming conventions. Class names go UpperCase. – GhostCat Sep 03 '20 at 07:25
my question is when object is created it will have a field value so how does it change – abhishek Sep 03 '20 at 07:29
@abhishek it does not change. You read two different fields (with the same name), so get different results. – Alexei Kaigorodov Sep 03 '20 at 09:15

why child class object refer parent class value

0 Answers0