Online GK Series

This site is dedicated to the aspirants of competitive exams SSC, UPSC, Railways, Postal Assistants, Bank, GATE and NET

Get Attractive Job

Basic Java Objective Interview Questions and Answers

6 The order of the three top level elements of the java source file are
A Import, Package, Class
B Class, Import, Package
C Package, Import, Class
D Random order

Answer: Option [C]
7 The minimum value of char type variable is
A ‘\u0020’
B ‘\u00ff’
C ‘\u0010’
D ‘\u0000’

Answer: Option [D]

'\u0000' i.e. 0 is the minimum value of the char type varibale in java

8 Java uses ___ to represent characters
A ASCII code
B Unicode
C Byte code
D None of the above

Answer: Option [B]
9 Which one is not supported by OOP?
A Abstraction
B Polymorphism
C Encapsulation
D Global variables

Answer: Option [D]

Four major principles of object oriented programming are Abstraction, Encapsulation, Inheritance and Polymorphism

10 Java programs are
A Platform-dependent
B Interpreter-dependent
C Platform-independent
D Interpreter-independent

Answer: Option [C]


Useful Computer Science EBooks