Consider the given program and answer the questions given below:

class temp
{
 int a;
 temp()
 {
 a=10;
 }
 temp(int z)
 {
 a=z;
 }
 void print()
 {
 System.out.println(a);
 }
 void main()
 {
 temp t = new temp();
 temp x = new temp(30);
 t.print();
 x.print();
}
}

(a) What concept of OOPs is depicted in the above program with two constructors?

(b) What is the output of the method main()?

Why do we need a constructor as a class member?

Define a class named FruitJuice with the following description:

Data Members	Purpose
int product_code	stores the product code number
String flavour	stores the flavour of the juice (e.g., orange, apple, etc.)
String pack_type	stores the type of packaging (e.g., tera-pack, PET bottle, etc.)
int pack_size	stores package size (e.g., 200 mL, 400 mL, etc.)
int product_price	stores the price of the product

Member Methods	Purpose
FruitJuice()	constructor to initialize integer data members to 0 and string data members to ""
void input()	to input and store the product code, flavour, pack type, pack size and product price
void discount()	to reduce the product price by 10
void display()	to display the product code, flavour, pack type, pack size and product price

Fill in the blanks to design a class:

class __________{
int l, b;
Area(int __________, int __________) {
l = __________;
b = __________;
}
}