Java Certified Programmer Interview Questions

Java Certified Programmer interview questions

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Total Questions: 5

1. What is the number of bytes used by Java primitive long. Select the one correct answer.

A. The number of bytes is compiler dependent.

B. 2

C. 4

D. 8

Correct Answer is : 8

2. Which of the following are NOT keywords or reserved words in Java?

A. if

B. while

C. goto

D. Then

Correct Answer is : Then

3. What is the result of evaluating the expression 14 ^ 23. Select the one correct answer.

A. 25

B. 37

C. 6

D. 31

Correct Answer is : 25

4. Which declaration of the main method below would allow a class to be started as a standalone program. Select the one correct answer.

A. public static int main(char args[])

B. public static void main(String args[])

C. public static void MAIN(String args[])

D. public static void main(String args)

Correct Answer is : public static void main(String args[])

5. A programmer has an algorithm that requires a java.util.List that providesan efficient implementation of add(0, object), but does NOT need to support quick random access.What supports these requirements?

A. java.util.Queue

B. java.util.ArrayList

C. java.util.LinearList

D. java.util.LinkedList

Correct Answer is : java.util.LinkedList

Java Certified Programmer interview questions