The default constructor are used to initialize the object variables with some default values at the time of object instantiation. Which constructor has arguments thats called Parameterized Constructor.
<br />class Rectangle {
int length;
int breadth;
Rectangle() //Default constructor
{
length = 0;
breadth = 0;
}
Rectangle(int len,int bre) // Parameterized constructor
{
length = len;
breadth = bre;
}
void rectArea()
{
int result;
result = length * breadth ;
System.out.println("The area of the rectangle is : " + result );
}
}
class RectangleDemo {
public static void main(String args[]) {
Rectangle r1 = new Rectangle(); //calling default constructor
Rectangle r2 = new Rectangle(5,10); // calling parameterized constructor
r1.rectArea();
r2.rectArea();
}
}
Output :-
Myprogworld 