Interview Questions on Variables in Java Programming

In solving the questions on variables in Java, you can get an overview of variables and their purpose in declaring while writing the program. You can also get a basic understanding of a variable and where to declare it.

1) The identifiers that point towards the primitive datatypes are known as —————.

A) Pointers

B) Objects

C) Variables

D) None of the Above

Ans. C

2) A variable can store a single value that is unchangeable and fixed. 

A) True

B) False

3) Every object has a state and behavior. Objects store their state in —————-.

A) Fields or Variables

B) Data Types

C) Function

D) Data Sets

4) —————– are just identifiers for datatypes.

A) Variables

B) Functions

C) Class

D) All the Above

Questions on Variables in Java

5) The identifiers that point towards the objects are known as ————– variables.

A) Reference Variables

B) Extract Variables

C) Caption Variables

D) Quotation Variables

6) The maximum length of a variable is ——- characters.

A) 256

B) 216

C) 258

D) 254

 

7) In addition to alphabets, variables in Java can also start with either —————- or —————-symbols.

A) Underscore (_), or hash (#)

B) Underscore (_), or at sign (@)

C) Underscore (_), or hyphen (-)

D) Underscore (_), or Dollar ($)

8) Between the variables in Java, there should be 

A) Space

B) Hyphen

C) Semicolon

D) No Space

9) Lastly, the first letter of a variable should be

A) A Number

B) Hyphen

C) Special Character

D) An Alphabet

10) Lastly, while declaring a variable, specification of the ——— is a must.

A) Method

B) Value

C) Data Type

D) None of the Above

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