Program to show constructors in java

class A
{
int a,b,c;
public A() //default constructor
{
a=4;
b=5;
c=a*b;
System.out.print("into= "+c);
}
public A(int x, int y)  //parameterised constructor
{
c=x+y;
System.out.print("\nSUM= "+c);
}

}
public class consdes {

public static void main(String[] args) {
A t=new A();

A o=new A(1,2);

}

}

output:

into= 20

SUM= 3