Java Basics Quiz10

Welcome to Java Basics Quiz Series.

This quiz consists of 15 multiple-choice questions.

Keep the following in mind:

Multiple Attempts - You will have multiple attempts for this quiz.
Timing - You will need to complete each of your attempts in one sitting, as you are allotted 7 minutes to complete each attempt.
Answers - You may review your answer-choices and compare them to the correct answers after your final attempt.

To start, click the "Next" button. When finished, click the "Submit Quiz" button

What is the return type of a method that does not return any value?

float

void

null

default

Which of the following is a method having same name as that of it’s class?

constructor

class

finalize

Which of this statement is incorrect?

main() method must be made public

All object of a class are allotted memory for the methods defined in the class

If a function is defined public it can be accessed by object of other class by inheritation

All object of a class are allotted memory for the all the variables defined in the class

Which of these keywords is used to make a class?

class

int

Class

Which of the following is a valid declaration of an object of class Box?

Box obj = new Box();

obj = new Box();

new Box obj;

Which of these operators is used to allocate memory for an object?

alloc

new

newMemory

Which of these statement is incorrect?

Every class must contain a main() method

main() method must be made public

There can be only one main() method in a program

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

JVM

JRE

JDK

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

JVM

JRE

Compiler

Which statement is true about java?

Sequence dependent programming language

Platform independent programming language

Platform dependent programming language

Which of the below is invalid identifier with the main method?

public

private

static

What is the extension of java code files?

.java

.class

.Class

When does method overloading is determined?

At run time

At compile time

At coding time

At execution time

Which of this method of class String is used to obtain a length of String object?

get()

length()

lengthof()

size()

In order to restrict a variable of a class from inheriting to subclass, how variable should be declared?

Private

Public

Static

Protected

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