Name two ways of creating objects in a constructor.

Differentiate between the following statements:
abc p = new abc();
abc p = new abc(5,7,9);

Write a program by using a class with the following specifications:

Class name — Hcflcm

Data members/instance variables:

1. int a
2. int b

Member functions:

1. Hcflcm(int x, int y) — constructor to initialize a=x and b=y.
2. void calculate( ) — to find and print hcf and lcm of both the numbers.

An electronics shop has announced a special discount on the purchase of Laptops as given below:

Define a class Laptop described as follows:

Data members/instance variables:

1. name
2. price
3. dis
4. amt

Member Methods:

1. A parameterised constructor to initialize the data members
2. To accept the details (name of the customer and the price)
3. To compute the discount
4. To display the name, discount and amount to be paid after discount.

Write a main method to create an object of the class and call the member methods.