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IT Interview Exam Questions: JAVA 2 (IT Campus Placement)

Subject: JAVA 2

Part 2: List for questions and answers of JAVA


Q1. What do you mean by javap?

a) java compiler

b) java Interpreter

c) java Disassemble

d) java debugger


Q2. What is HotJava ?

a) system software

b) web browser

c) java environment

d) IDE


Q3. Who invented JAVA?

a) James Gosling

b) Dennis Ritchie

c) James Ritchie

d) Dennis gosling


Q4. What was the name of JAVA initially?

a) Bean

b) Java Bean

c) Oak

d) C#


Q5. Dose Java supports operator overloading?

a) Yes

b) No

c) Sometimes

d) always


Q6. Java supports Pass by reference or Pass by value

a) Pass by value

b) Pass by reference

c) All of these

d) None of these 


Q7. Which of these class is superclass of String and StringBuffer class?

a) java.util

b) java.lang

c) ArrayList

d) None of the mentioned


Q8. In java Char allocate how many bit?

a) 8 bit

b) 16 bit

c) 32 bit

d) 64 bit


Q9. String contain in which package?

a) java.util

b) java.lang


d) None of these


Q10. Which is a reserved word in the Java programming language?

a) method

b) native

c) subclass

d) array


Q11. Thread can be created by how many way

a) 1

b) 2

c) 3

d) 4


Q12. Runnable is

a) class

b) method

c) Interface

d) toolkit 


Q13. Which collection class associates values witch keys, and orders the keys according to their natural order

a) java.util.HashSet

b) java.util.TreeMap


d) Java.applet


Q14. Which method executes only once

a) start()

b) init()

c) destroy()

d) Kill()


Q15. Minimum threads in a program are

a) 1

b) 2

c) 3

d) 5


Q16. after compilation of java class the file create is

a) .class

b) .doc

c) .java

d) .apk


Q17. What is the base class of all classes

a) object class

b) String class

c) util class

d) None of these


Q18. How many JDBC driver types does Sun define?

a) 1

b) 2

c) 3

d) 4 


Q19. Who invented Java

a) Netscape

b) Microsoft

c) sun

d) none of these


Q20. To run a compiled Java program, the machine must have what loaded and running?

a) JVM

b) byte code

c) web browser

d) java compiler 


Part 2: List for questions and answers of JAVA


Q1. Answer: c


Q2. Answer: b


Q3. Answer: a


Q4. Answer: c


Q5. Answer: b


Q6. Answer: a


Q7. Answer: b


Q8. Answer: b


Q9. Answer: b


Q10. Answer: b


Q11. Answer: b


Q12. Answer: c


Q13. Answer: b


Q14. Answer: b


Q15. Answer: a


Q16. Answer: a


Q17. Answer: a


Q18. Answer: d


Q19. Answer: c


Q20. Answer: a