Home » Java » MCQs (Page-6)

Java Objective Questions (MCQs) - 225

Page 6 (101 - 120)

« 1 2 3 4 5 6 7 8 9 10 11 12 »

Question: 101

class cppbuzz{
    protected void sum(){
        System.out.println("hi");
    }
}

public class Main
{
	public static void main(String[] args) {
		cppbuzz obj = new cppbuzz();
		obj.sum();
	}
}

(A) hi
(B) Compilation Error
(C) Nothing is printed
(D) Exception

Level: Beginner Category of MCQ: classesAndobjects

Question: 102

class cppbuzz{
    public static void sum(){
        System.out.println("hi");
    }
}
public class Main
{
	public static void main(String[] args) {
		cppbuzz obj = new cppbuzz();
		obj.sum();
	}
}

(A) hi
(B) Compilation Error
(C) Exception
(D) None of the above

Level: Beginner Category of MCQ: classesAndobjects

Question: 103

class cppbuzz{
    public static void sum(){
        System.out.println("hi");
    }
}
public class Main
{
	public static void main(String[] args) {
	    cppbuzz.sum();
	}
}

(A) hi
(B) Compilation Error
(C) Exception
(D) None of the above

Level: Beginner Category of MCQ: classesAndobjects

Question: 104

class cppbuzz{
    protected static void sum(){
        System.out.println("hi");
    }
}
public class Main
{
	public static void main(String[] args) {
	    cppbuzz.sum();
	}
}

(A) hi
(B) Compilation Error
(C) Exception
(D) None of the above

Level: Beginner Category of MCQ: classesAndobjects

Question: 105

class cppbuzz{
    private static void sum(){
        System.out.println("hi");
    }
}
public class Main
{
	public static void main(String[] args) {
	    cppbuzz.sum();
	}
}

(A) hi
(B) Compilation Error
(C) Exception
(D) None of the above

Level: Beginner Category of MCQ: classesAndobjects

Question: 106

class cppbuzz{
    static void sum(){
        System.out.println("hi");
    }
}
public class Main
{
	public static void main(String[] args) {
	    cppbuzz.sum();
	}
}

(A) error: sum() is private default
(B) hi
(C) Exception
(D) Nothing is printed

Level: Practitioner Category of MCQ: classesAndobjects

Question: 107

How does below code behaves?

public class Main
{
private static void main(String[] args) {
	    
	}
}

(A) Code runs but nothing is printed
(B) Code runs in infinite loop
(C) error: Main method not found
(D) Exception

Level: Expert Category of MCQ: classesAndobjects

Question: 108

How many times 'facebook' is printed?

public class Main
{
public static void main(String[] args) {
    
    for(int i = 0; i<5; i++);
    {
	  System.out.println("facebook");
    }
}
}

(A) 0
(B) 2
(C) 4
(D) 1

Level: Practitioner Category of MCQ: loops

Question: 109

public class HelloWorld
{
  public static void main(String[] args) {
	  
	char[] a = {'A', 'S', 'I', 'S', 'H'};
	
	int i = 4;
	
	do {
		System.out.print(a[i]);
		i--;
	}while (i>0);
	
	}
}

(A) ASISH
(B) asish
(C) HSISA
(D) HSIS

Level: Practitioner Category of MCQ: arrays

Question: 110

public class Main
{
public static void main(String[] args) {
    String input = " ";
    System.out.println("-"+input.trim()+"-");
}
}

(A) Compilation Error
(B) Exception
(C) - -
(D) --

Level: Practitioner Category of MCQ: methods

Question: 111

public class Main
{
public static void main(String[] args) {
    String input = null;
    System.out.println("-"+input.trim()+"-");
}
}

(A) -null-
(B) - -
(C) --
(D) java.lang.NullPointerException

Level: Expert Category of MCQ: methods

Question: 112

public class Main
{
public static void main(String[] args) {
    String input = "";
    System.out.println("-"+input.trim().trim()+"-");
}
}

(A) Compilation Error
(B) Exception
(C) --
(D) - -

Level: Expert Category of MCQ: methods

Question: 113

public class Main
{
public static void main(String[] args) {
    String input = " cpp buzz chicago ";
    input = input.trim();
    System.out.println(input.length());
}
}

(A) 3
(B) 5
(C) 18
(D) 16

Level: Practitioner Category of MCQ: methods

Question: 114

public class Main
{
public static void main(String[] args) {
    String input = " cppbuzz ";
    input = input.trim();
    System.out.print(input.length());
    input= input + " ";
    input= input + " ";
    System.out.print(input.length());
}
}

(A) 77
(B) 78
(C) 79
(D) 710

Level: Expert Category of MCQ: methods

Question: 115

public class Main
{
public static void main(String[] args) {
    String input = "
cppbuzz
";
    input = input.trim();
    System.out.print(input.length());
}
}

(A) 7
(B) 8
(C) 9
(D) 10

Level: Expert Category of MCQ: methods

Question: 116

public class Main
{
public static void main(String[] args) {
    String input = "the cppbuzz";
    input = input.replace("the", " ");
    input = input.trim();
    System.out.print(input.length());
}
}

(A) 7
(B) 8
(C) 9
(D) 10

Level: Practitioner Category of MCQ: methods

Question: 117

public class Main
{
public static int i = 5;  

public static void main(String[] args) {
 decrement();
 decrement();
 decrement();
}
	
public static void decrement()
{
 System.out.print(i);
 i--;
}

}

(A) 555
(B) 544
(C) 554
(D) 543

Level: Practitioner Category of MCQ: methods

Question: 118

Why use inheritance

(A) Inheritance increases execution of program
(B) Inheritance is useful in code re-usability
(C) Inheritance minimizes programming loop holes
(D) None of the above

Level: Beginner Category of MCQ: inheritance

Question: 119

What is 'extends' in java inheritance?

(A) extends is a datatype
(B) extends is a keyword
(C) extends is a class
(D) extend is a package

Level: Beginner Category of MCQ: inheritance

Question: 120

class Capgemini{
    private int a;
    public Capgemini(){
        a=10; 
   }
}

public class Main extends Capgemini
{
	public static void main(String[] args) {
		Main obj = new Main();
		System.out.println(obj.a);
	}
}

(A) 0
(B) 10
(C) Compilation Error
(D) Exception

Level: Beginner Category of MCQ: inheritance

« 1 2 3 4 5 6 7 8 9 10 11 12 »

Browse Java Categories

Datatype Variables Operators Decision Making Loops Methods Reference Variables Arrays Classes and Objects Abstract Class Singleton Class Modifiers Inheritance Overriding Polymorphism Abstraction Encapsulation Files and I/O TypeCasting Packages Exceptions Collections Framework Numbers Class Date & Time Regular Expressions Data Structures Interfaces Multithreading Other

Home » Java » MCQs (Page-6)

Java Objective Questions (MCQs) - 225

Browse Java Categories

MCQs

Problems

Projects

Compiler

Online Test