JAVA Basics

Which of these cannot be used for a variable name in Java?

• identifier & keyword

• identifier

• keyword

• none of the mentioned

Which component is used to compile, debug and execute the java programs?

• JRE

• JIT

• JDK

• JVM

Which of the following is not an OOPS concept in Java?

• Polymorphism

• Compilation

• Inheritance

• Encapsulation

Which of these are selection statements in Java?

• break

• continue

• for()

• if()

What is the value stored in x in following lines of code?

int x, y, z;

 x = 0;

 y = 1;

 x = y = z = 8;

• 1

• 9

• 8

• 0

Evaluate the following Java expression, if x=3, y=5, and z=10:

++z + y - y + z + x++

• 24

• 23

• 20

• 25

Which of the following for loop declaration is not valid?

• for ( int i = 99; i >= 0; i / 9 )

• for ( int i = 7; i <= 77; i += 7 )

• for ( int i = 20; i >= 2; - -i )

• for ( int i = 2; i <= 20; i = 2* i )

What does JVM stands for?

• Java Variable Machine

• Java Virtual Machine

• Java Virtual Mechanism

• None of the above

What are the main Distribution types of Java Software?

• Java SE (Java Standard Edition)

• Java EE (Java Enterprise Edition)

• Java ME (Java Micro Edition)

• All the above

What is JVM ?

• JVM is the confined memory area

• All java programs run inside JVM memory

• JVM provides security to the computer by giving controlled access to Files and Memory on a computer

• All the above