Java MCQ Questions - Java Basics

This section focuses on the "Basics" of Java programming. These Multiple Choice Questions (MCQ) should be practiced to improve the Java programming skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

1. Java Source Code is compiled into ______________.

A. .Obj
B. Source Code
C. Bytecode
D. .Exe

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2. Enums were introduced in?

A. Java 4.0
B. Java 8.0
C. Java 5.0
D. Java 6.0

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3. Default, public , protected, private are?

A. Access Modifier
B. Non-access Modifiers
C. Both A and B
D. It's variable

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4. Which of the following is used to interpret and execute Java Applet Classes hosted by HTML.

A. appletviewer
B. appletwatcher
C. appletshow
D. appletscreen

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5. HTML based Java Documentary help can be accessed using ______________.

A. javahelp
B. javamanual
C. javadoc
D. None of these

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6. jar stands for _____________.

A. Java Application Runner
B. Java Archive
C. Java Archive Runner
D. None of these

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7. Which of the following is not a keyword in Java.

A. transient
B. instanceof
C. emun
D. strictfp

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8. Which of the following is not a keyword in Java.

A. assert
B. boolean
C. abstract
D. finalize

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9. Single line comment starts with _________ in Java.

A. /**
B. //
C. /*
D. None of these

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10. What is JRE?

A. JRE is a java based GUI application.
B. JRE is an implementation of the Java Virtual Machine which executes Java programs.
C. JRE is an application development framework.
D. None of the above

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11. How to compile java code in command prompt?

A. javac filename.java
B. java filename.java
C. javac filename
D. java filename

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12. How to run java program in command prompt?

A. javac filename.java
B. java filename.java
C. javac filename
D. java filename

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13. Java is case sensitive?

A. True
B. False
C. Depends On Complier
D. May be true or false

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14. What is true in Java?

A. For all class names the first letter should be in Upper Case.
B. All method names should start with a Lower Case letter.
C. Name of the program file should exactly match the class name.
D. All of the above

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15. All Java components require names. Names used for classes, variables, and methods are called?

A. Variables
B. identifiers
C. Access Modifiers
D. Java Modifiers

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