Java MCQ's with Answers
set I
Q1. Java has its origin in
a) C programming language
b) PERRL
c) COBOL
d) Oak programming language ✔
Answer is d) Oak programming language
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Q2. Java programs are
a) Faster than others
b) Platform independent ✔
c) Not reusable
d) Not scalable
Answer is b) Platform independent
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Q3. Which one of the following is true for Java
a) Java is object-oriented and interpreted ✔
b) Java is efficient and faster than C
c) Java is the choice of everyone.
d) Java is not robust.
Answer is a) Java is object-oriented and interpreted
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Q4. Java servlets are an efficient and powerful solution for creating _________ for the web.
a) Dynamic content ✔
b) Static content
c) Hardware
d) Both a and b
Answer is a) Dynamic content
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Q5. The command javac is used to
a) debug a java program
b) compile a java program ✔
c) interpret a java program
d) execute a java program
Answer is b) compile a java program
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Q6. Which of the following is not a Java features?
a) Dynamic
b) Architecture Neutral
c) Object-oriented
d) Use of pointers ✔
Answer is d) Use of pointers
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Q7. Which of the following option leads to the portability and security of Java?
a) Bytecode is executed by JVM ✔
b) The applet makes the Java code secure and portable
c) Use of exception handling
d) Dynamic binding between objects
Answer is a) Bytecode is executed by JVM
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Q8. Native-protocol pure Java converts _________ into the _________ used by DBMSs directly.
a) JDBC calls, network protocol ✔
b) ODBC class, network protocol
c) ODBC class, user call
d) JDBC calls, user call
Answer is a) JDBC calls, network protocol
Explanation : For explanation Join the discussion below
Q9. Which is the root class of all AWT events
a) java.awt.ActionEvent
b) java.awt.AWTEvent ✔
c) java.awt.event.AWTEvent
d) java.awt.event.Event
Answer is b) java.awt.AWTEvent
Explanation : For explanation Join the discussion below
Q10. OOP features are
i) Increasing productivity ii) Reusability
iii) Decreasing maintenance cost iv) High vulnerability
a) i,ii & iv
b) i,ii & iii ✔
c) i, ii & iv
d) none of the above
Answer is b) i,ii & iii
Explanation : For explanation Join the discussion below
Q11. _________ is used to find and fix bugs in the Java programs.
a) JVM
b) JDK
c) JDB ✔
d) JRE
Answer is c) JDB
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Q12. Filters were officially introduced in the Servlet _________ specification.
a) 2.1
b) 2.3 ✔
c) 2.2
d) 2.4
Answer is b) 2.3
Explanation : For explanation Join the discussion below
Q13. break statement is used to
i) get out of method ii) end a program
iii) get out of a loop iv) get out of the system
a) i & ii
b) i,ii & iv
c) i & iii
d) iii ✔
Ans is d) iii
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Q14. Evaluate the following Java expression, if x=3, y=5, and z=10:
++z + y - y + z + x++
a) 24 ✔
b) 25
c) 20
d) 23
Ans is a) 24
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Q15. Which package contains the Random class?
a) java.util package ✔
b) java.lang package
c) java.awt package
d) java.io package
Ans is a) java.util package
Explanation : For explanation Join the discussion below
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