Procedure in Creating Object.

Procedure in Creating Object:
In an object creation there are two phases
1) Object memory creation.
2) Object memory initialization.

The above two phases has four stemps.
example: Student s1=new Student
step-1: Referenced variable memory creation.
step-2: New keyword execution.
   2.1: As part of this step object memory is created with an non-static variables by assigning default values and then assigned value.
step-3: Invoking constrantes
new keyword invokes constracts by passing current object reference.
   3.1: As part of this step control is send to constrants body and reference is store by creating this keyword memory forther constraints logic is executed for initializing this object non-static variables.
step-4: After control return from constracter, new keyword return current object reference and store the reference is 's1' variable then 's1' variable start pointing to this object.

// Prog: NetloJavaInstitute.java

//Student.java

class Student {
 int rollNo;
 String name;
 String institute;

 Student(int rn,String nm,String ins){
  rollNo=rn;
  name=nm;
  institute=ins;
 }
}

//NetloJavaInstitute.java

 class NetloJavaInstitute{
  public static void main(String args[]){

   Student s1=new Student(1,"james","netlojava");
   Student s2=new Student(2,"gosling","netlojava");

   System.out.println("Student 1 Object Data");
   System.out.println("Roll No:"+s1.rollNo);
   System.out.println("Name:"+s1.name);
   System.out.println("Institute:"+s1.institute);

   System.out.println("\nStudent 2 Object Data");
   System.out.println("Roll NO:"+s2.rollNo);
   System.out.println("Name:"+s2.name);
   System.out.println("Institute:"+s2.institute);
  }
 }

compilation:
G:\netlojava>javac NetloJavaInstitute.java

Execution:
G:\netlojava>java NetloJavaInstitute

Out Put:

Student 1 Object Data
Roll No:1
Name:james
Institute:netlojava

Student 2 Object Data
Roll NO:2
Name:gosling
Institute:netlojava