CREATING AN ARRAY OF OBJECTS

• Array elements may contain objects as well as integers, doubles or characters
• When an array is declared to be of an object type, the objects are not automatically constructed, but the constructors must be called individually for each object
• To use a method that belongs to an object that is part of an array, you specify the array name, the subscript in brackets, a dot, then the method name.

Example:
public class Student
{private int stuId;
private double stuGpa;
Student(int n, double gpa)
{  stuId = n;
     stuGpa = gpa;
  }
public int getStuId( )
{ return stuId;
  }
  public double  getStuGpa( )
{ return stuGpa;
  }
}

public class TestStudent
{  public static void main (String [ ] args)
  {  // The statement below reserves enough memory for five Student objects named stu[0] through stu[4]; However, the  
    //statement does not actually construct those Student objects; instead, you must call the seven individual constructors. 
    Student [ ] stu = new Student[5];
    //Construct 5 Student objects
     for (int i = 0; i < 5; i++)
     {  stu[i] = new Student(10 + i , 0.0);
     }
  //Display data for the five students
    for (int i = 0; i < 5 ; i++ )
    { System.out.println(stu[i].getStuId( ) + "  " + stu[i].getStuGpa( ) );
     }
}
}