Java | Class and Object | Question 4

Predict the output of following Java program.

class demoClass
{
    int a = 1;

    void func()
    {
        demo obj = new demo();
        obj.display();
    }


    class demo
    {
        int b = 2;

        void display()
        {
            System.out.println("\na = " + a);
        }
    }

    void get()
    {
        System.out.println("\nb = " + b);
    }
}


class Test
{
    public static void main(String[] args)
    {
        demoClass obj = new demoClass();
        obj.func();
        obj.get();

    }
}

(A)

a = 1
b = 2

(B) Compilation error

(C)

b = 2
a = 1

Answer: (B)

Explanation:
Members of inner class ‘demo’ can not be used in the outer class ‘Test’. Thus, get() of outer class can not access variable ‘b’ of inner class.

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