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ICSE Class 10 Computer Applications Question 29 of 30

Solved 2025 Specimen Paper ICSE Class 10 Computer Applications — Question 29

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29
Question

Question 2(ix)

Consider the following program segment and answer the questions below:

class calculate

{
  int a; double b; 
  calculate()

  {

  a=0; 
  b=0.0;

  }

  calculate(int x, double y)

  {

  a=x;
  b=y;

  }

void sum()

{

  System.out.println(a*b);

}}

Name the type of constructors used in the above program segment?

Answer

The type of constructors used in the above program segment are:

  1. Default constructor
  2. Parameterized constructor

Explanation:

The types of constructors used in the given program are:

1. Default Constructor:

calculate() {
    a = 0;
    b = 0.0;
}
  • A default constructor is a constructor that does not take any parameters.
  • It initializes the instance variables a and b with default values (0 and 0.0 respectively).

2. Parameterized Constructor:

calculate(int x, double y) {
    a = x;
    b = y;
}
  • A parameterized constructor is a constructor that takes arguments (int x and double y in this case).
  • It allows for initializing the instance variables a and b with specific values provided during object creation.