creating an array of objects in java

## Creating and Working with Arrays of Objects in Java: A Detailed Tutorial

This tutorial will guide you through creating, initializing, and working with arrays of objects in Java. We'll cover various aspects, from the basic syntax to more advanced concepts, with plenty of code examples to illustrate each step.

**Why Use Arrays of Objects?**

Arrays of objects are essential for managing collections of custom data types. Instead of dealing with individual, disconnected objects, you can group them together for efficient storage and manipulation. This is crucial in scenarios like:

* **Data Representation:** Storing a list of `Employee` objects, `Student` objects, or `Product` objects.
* **Algorithm Implementation:** Representing nodes in a graph, elements in a game, or points in a geometric space.
* **Batch Processing:** Performing the same operation on multiple objects in a loop.

**1. Declaring an Array of Objects**

The syntax for declaring an array of objects is similar to declaring an array of primitive data types, but instead of specifying `int`, `double`, etc., you specify the class name of the object.

* **`ClassName`:** The name of the class whose objects you want to store in the array. For example, `String`, `Person`, `Car`, etc.
* **`arrayName`:** The name you choose for the array variable.
* **`[]`:** Square brackets indicate that it's an array.

**Example:**

**Important Note:** At this point, the array `people`, `names`, or `accounts` only exists as a reference. It doesn't have a fixed size, and no objects are yet stored within it. It's like having a blueprint for a bookshelf but not the bookshelf itself. The value of the variables is `null`.

**2. Creating (Instantiating) an Array**

To actually create the array (allocate memory for it), you need to use the `new` keyword and specify the size (number of elements) it will hold.

* **`new`:** This keyword allocates memory on the heap.
* **`ClassName[size]`:** Specifies the ...

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