Question

java coding

Create two objects S1 and S2 that uses the default constructor

· Call the ‘display’ method for objects S1 and S2.

· Call the ‘setGrade’method that increments the grade by 1 for object S2

· Call the ‘getGrade’ method that will display the value variable grade for objects S1 and S2

Answer 1

class student
{
int grade;
String name;
student() //Default constructor
{
grade = 4;
name = "pqr";
}
void setGrade() //setGrade method
{
grade = grade + 1;
}
void display() //display method
{
System.out.println("Name: "+name);
System.out.println("Grade: "+grade);
}
int getGrade() //getGrade method
{
return grade;
}
}
public class Main
{
   public static void main(String[] args) {
       student s1 = new student(); //Creating first object
       student s2 = new student(); //Creating second object
       s1.display(); //Calling display method on object 1
       s2.display(); //Calling display method on object 2
       s2.setGrade(); //Calling setGrade method on object 2   
       System.out.println("first object final grade: "+s1.getGrade()); //Printing the grade for object 1
       System.out.println("second object final grade: "+s2.getGrade()); //Printing the grade for object 2
   }
}

Output:-