JPE Quiz 1

What are the values of x and y?

x = 5;

y = ++x;

• x = 5, y = 5

• x = 5, y = 6

• x = 6; y = 5

• x = 6; y = 6

Which is valid declaration of a float variable?

• float f = 1F;

• float f = 1.0;

• float f = "1";

• float f = 1.0d;

Which of the following declarations is/are valid:

1.bool b = null;

2.boolean b = 1;

3.boolean b = true|false;

4.bool b = (10<11);

5.boolean b = true||false;

• 1 and 4

• 2, 3, and 5

• 2 and 3

• 3 and 5

What will it print when compiled and run?

• 5

• 6

• 7

• 8

Types of Java Comments include:

• Single Line Comment

• Multi Line Comment

• Documentation Comment

• A and B are TRUE

• A, B and C are TRUE

What will the following code print?

• 1 2

• 2 3

• 12 2

• 12 1

• It will not compile

What will be the output of the following code snippet?

• 0

• 1

• 2

• TRUE

• FALSE

What is JDK stands for?

• Java Development Kit

• Java Development Kit

• Java Developer Kit

• Java Developer Kat

• Java Deployment Kit

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

• JVM

• JDK

• JIT

• JRE

• None of the above

Which component is responsible for converting bytecode into machine specific code?

• JVM

• JDK

• JIT

• JRE

• None of the above