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Java | Abstract Class and Interface | Question 3

Predict the output of the following program. Java
abstract class demo
    public int a;
        a = 10;

    abstract public void set();
    abstract final public void get();


class Test extends demo

    public void set(int a)
        this.a = a;

    final public void get()
        System.out.println(\"a = \" + a);

    public static void main(String[] args)
        Test obj = new Test();


a = 10


a = 20


Compilation error


Please comment below if you find anything wrong in the above post
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