Java Quizathon

What is wrong with the following Java variable declaration?

int 1stNumber = 23;

• There is no data type called 'int'

• Variable names can not start with a digit

• Variable names can not contain digits

• Number 23 can not be stored in an int

Following set of data items are to be stored about a student

a. Students name

b. Students current age in years

c. Students weight in kg

d. Students gender

Which of the following data types will match best with these

• a. String

  b. int

  c. String

  d. String

• a. String

  b. float

  d. int

  d. int

• a. String

  b. int

  c. float

  d. boolean

• a. String

  b. int

  c. float

  d. char

Which of the following data is the 'smallest' data type that can be used to hold the 'distance between Earth to Mars' in km.

(Average distance between Earth and March is 234,460,000 km)

• byte

• int

• long

• short

What is the output of the following code?

• x is 0

• x is 1

• x is 2

• x is 3

• x is 4

Java is a

• Procedure Oriented Language

• Structure Oriented Language

• Object_Oriented Language

• Machine Language

The name of the following should be the file name in Java

• Object Name

• Variable Nam

• Class Name

• Array Name

The name of the following should be the file name in Java

• Object Name

• Variable Nam

• Class Name

• Array Name

A ___________ file is created after successful compilation of a Java program.

• Object file

• Array file

• Class file

• String file

Command to compile Java program

• javax

• javay

• javac

• Java

JDK stands for

• Java Developer Kit

• Java Development Kit

• Java Design Kit

• Java Debugging Kit