LEARN2PROGRAMS: TECHNICAL INTERVIEW AND PRACTICE QUESTIONS ON JAVA

Thursday, 19 June 2014

INTERVIEW AND PRACTICE QUESTIONS ON JAVA - SET 5

1. Automatic conversion from priitive type to an object of the corresponding wrapper class is called

(A) coercing

(B) casting

(D) widening

ANSWER IS (C)

2. The fact that any program can print using system.out.print , implies that

(A) system is defined in the package java.lang

(B) system is a class name

(D) print is a method

ANSWER IS (A) , (B), (C) AND (D)

3. Which of the following are valid identifers?

(A) $ABC

(B) _____(5 consecutive underscores)

(D) protected

ANSWER IS (A) ,(B) AND (C)

4. The program given below

int x=1, m=0;

for ( ; m<10 ; ++m)

x= x+x;

system.out.print(x);

prints

(A) 1024

(B) 512

(D) 10

ANSWER IS (A)

5. Elements of an array have the same

(A) index

(B) value

(D) scope

ANSWER IS (C) AND (D)

NEXT SET 6|| PREVIOUS SET 4

LEARN2PROGRAMS