WAP on constructor overloading in java

1. //Ques. 9 WAP on constructor overloading.
class Student
{
privateintrollNumber;
private String name;
public Student()
{
System.out.println("n Inside Default Constructor");
rollNumber=0;
name="Unknown";
}
public Student(introllNumber,String name)
{
System.out.println("n Inside Overloaded Constructor");
this.rollNumber = rollNumber;
this.name=name;
}
public void displayStudent()
{
System.out.println(" Name = "+name);
System.out.println(" Roll No. = "+rollNumber);

2. }
}
classConstructorOverLoad
{
public static void main(String arg[])
{
Student s1 = new Student(7448264,"Ultimate Virus");
s1.displayStudent();
Student s2 = new Student();
s2.displayStudent();
}
}

3. OUTPUT:-