Dr. A.P.J. Abdul Kalam University BCA V SEM Introduction to JAVA [BCA501T] Dec 2020 Question Paper

Dr. A.P.J. Abdul Kalam University

Bachelor of Computer Application

Fifth Semester Main Examination, Dec-2020

Introduction to JAVA [BCA501T]

Time: 3:00 Hrs Max Marks 50

Note : Attempt all questions. All questions carry equal marks.

Q.1 Explain java program structure. Explain access modifiers used in java.

OR

Define constructors with its types.

Q.2 What is JAVA virtual machine? Explain its concept.

OR

Explain the concept of class, object and methods.

Q.3 Explain inheritance with its types and diagram.

OR

What is file handling? How do you read and write to a text file in JAVA? Explain with

example.

Q.4 Write a JAVA program to calculate the factorial of a given number.

OR

What is thread? How do you create thread in a JAVA program? Explain with example.

Q.5 Explain data types used in JAVA. Explain briefly with its classification.

OR

Explain the concept of method overloading and method overriding with example

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