CRYPTEC TECHNICAL QUIZ 3RD SEM 2ND ROUND

    Which function incorporates a membership 'identity label' in the header?

• Member functions

• Normal functions

• Inline functions

• Constant functions

What is the extra feature in classes which was not in the structures?

• Member functions

• Data members

• Public access specifier

• Static Data allowed

Which definition best defines the concept of abstraction?

• Hides the important data

• Hides the implementation and showing only the features

• Hiding the implementation

• Showing the important data

Which among the following is not a member of the class?

• Virtual function

• Constant function

• Static function

• Friend function

What is the size of a class?

• Sum of the size of all inherited variables along with the variables of the same class

• The size of the class is the largest size of the variable of the same class

• Classes in the programming languages do not have any size

• Sum of the size of all the variables within a class.

Which of the following variable violates the definition of encapsulation?

• Array variables

• Local variables

• Global variables

• Public variables

Box(double w, double h, double d) {

this.width = w;

this.height = h;

this.depth = d;

}

What is the purpose of “this” keyword in the above code snippet?

• this is a reference to the method which was invoked

• this can be used inside any method to refer to the current object

• this is used to initialize and declare objects

• this is used to initialize a method within a class

class Test {

    static int count = 0;

 

    Test() {

        count++;

    }

 

    static void displayCount() {

        System.out.println("Count: " + count);

    }

}

 

public class Main {

    public static void main(String[] args) {

        new Test();

        new Test();

        Test.displayCount();

    }

}

What will the output of the above code be ?

• Count:1
  
  

• Count:2
  
  

• Count:0
  
  

• Compilation Error

The principle of ____, used in Java, ensures that a class cannot be instantiated and may contain abstract methods that must be implemented by subclasses.

• Method Overloading

• Encapsulation
  
  

• Method Overriding  

• Abstraction

package package1;

public class Parent {

    protected void show() {

        System.out.println("Parent class method");

    }

}

package package2;

import package1.Parent;

public class Child extends Parent {

    public static void main(String[] args) {

        Parent obj = new Parent();

        obj.show();

    }

}

what will the output of the code be?

• "Parent class method" will be printed

• Compilation Error
  
  

• Runtime Error

• Access Denied Exception