10_OOPs - Classes and Objects in java

class Employee{
    int id;
    float salary;
    String name;
    public void printDetails(){
        System.out.println("My id is : "+id);
        System.out.println("and my name is :" +name);
        System.out.println("and my salary is : " + salary);
    }
}
public class OOP {
    public static void main(String[] args) {

        System.out.println("First Class");
        Employee pm = new Employee();  // instantiating a new Employee Object
        Employee gg = new Employee();

        // Setting Attributes

        pm.id = 38;
        pm.name = "PM";
        pm.salary = 3788.5f;
        gg.id = 5;
        gg.name = "GG";
        gg.salary = 5555.5f;

        // Printing The Attributes

        pm.printDetails();
        gg.printDetails();
//        System.out.println(pm.id);
//        System.out.println(pm.name);
    }
}