class Parent{
void age(){System.out.println("age 60");}
}
class Child extends Parent{
void age(){System.out.println("age 20");}
void hobby(){
System.out.println("gardening");
}
void work(){
super.age();
hobby();
}
}
class SuperKeyword{
public static void main(String args[]){
Child obj=new Child();
obj.work();
}
}
/*
The super keyword can also be used to invoke parent class method.
It should be used if subclass contains the same method as parent class.
*/
age 60
gardening
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First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.