Explore topic-wise MCQs in Java Programming.

This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Java Programming knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the output of this program?class N { int K; void display() { System.out.println(K); } } class M extends N { int L; void display() { System.out.println(L); } } public class MethodOverriding { public static void main(String args[]) { M object = new M(); object.K=6; object.L=5; object.display(); } }

A. 6
B. 5
C. Compilation Error
D. Runtime Error
E. None of these
Answer» C. Compilation Error
Discussion
2.

What is the output of this program?class N { public int K; protected int L; } class M extends N { int L; void display() { super.L = 5; System.out.println(K + " " + L); } } public class Result { public static void main(String args[]) { M object = new M(); object.K=3; object.L=4; object.display(); } }

A. 1 2
B. 2 3
C. 3 4
D. 4 5
E. 5 6
Answer» D. 4 5
Discussion
3.

What is the output of this program?class N { public int K; public int L; N() { K = 5; L = 6; } } class M extends N { int p; M() { super(); } } public class super_Example { public static void main(String args[]) { M object = new M(); System.out.println(object.K + " " + object.L); } }

A. 5 6
B. 6 5
C. Compilation Error
D. Runtime Error
E. None of these
Answer» B. 6 5
Discussion
4.

What is the output of this program? abstract class n { int K; abstract void display(); } class m extends n { int L; void display() { System.out.println(L); } } public class Abstract_class_Example { public static void main(String args[]) { m obj = new m(); obj.L=5; obj.display(); } }

A. 1
B. 2
C. 3
D. 4
E. 5
Answer» F.
Discussion
5.

What is the output of this program?class N { public int K; private int L; } class M extends N { void display() { super.K = super.L + 2; System.out.println(super.K + " " + super.L); } } public class inheritance_Example { public static void main(String args[]) { M object = new M(); object.K=1; object.L=2; object.display(); } }

A. 3 3
B. 4 4
C. Compilation Error
D. Runtime Error
E. None of these
Answer» D. Runtime Error
Discussion