An array of objects????

[Sam Bluesman]

Hi people.

Let's say i have to create a student object - say student name, id and phone number. Is it possible to create an array of these student objects?

[Jesper de Jong]

Ofcourse. See the tutorial: Arrays

// This creates an array of Student objects,
// but all the 10 elements are initialized to null.
Student[] array = new Student[10];
 
// Now you have to create each of the Student objects in the array.
for (int i = 0; i < array.length; ++i) {
  array[i] = new Student();
}

[ October 25, 2006: Message edited by: Jesper Young ]

[Ernest Friedman-Hill]

You can create an array of references to Students; just as normal variables are just references to objects, array elements are, too. So when you construct an array of Student it will contain all null Student references. If you want to construct a Student for each position in the array, then could use a loop to do that:

Student[] students = new Student[10];
for (int i=0; i<students.length; ++i)
    students[i] = new Student("unknown", i, "unknown");

More likely you'd have a file containing Student data, and you read it in a loop and construct Student objects based on the data.

[Sam Bluesman]

Thanks guys - very helpful