//example of abstract class that have method body
abstract class Parent{
Parent(){
System.out.println("I am constructor of Parent class");
}
abstract void abstractMethod();
void nonAbsract(){
System.out.println("I am non Abstart method");
}
}
class Child extends Parent{
void abstractMethod(){
System.out.println("This is implementation of abstract method");
}
}
class Abstraction{
public static void main(String args[]){
Parent obj = new Child();
obj.nonAbsract();
obj.abstractMethod();
}
}
Output:
I am constructor of Parent class
I am non Abstart method
This is implementation of abstract method
Press any key to continue . . .
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.