public class Student {  
//instance variables of the class  
int id;  
String name;  
 
Student(){  
System.out.println("this a default constructor");  
}  
 
Student(int i, String n){  
id = i;  
name = n;  
}  
 
public static void main(String[] args) {  
//object creation  
Student s = new Student();  
System.out.println("\nDefault Constructor values: \n");  
System.out.println("Student Id : "+s.id + "\nStudent Name : "+s.name);  
 
System.out.println("\nParameterized Constructor values: \n");  
Student student = new Student(10, "David");  
System.out.println("Student Id : "+student.id + "\nStudent Name : "+student.name);  
}  
}  

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