array of objects in java with examples

Okay, let's dive deep into the concept of "Arrays of Objects" in Java. This is a fundamental and extremely useful concept for managing collections of custom data types.

**Understanding Arrays of Objects in Java**

At its core, an "array of objects" is an array where each element holds a reference to an object (instance) of a particular class. Think of it as a container that can hold multiple instances of the same type of object.

**Why Use Arrays of Objects?**

* **Grouping Related Data:** Arrays of objects allow you to organize and manage collections of related objects in a structured manner. For example, you might have an array of `Student` objects, an array of `Book` objects, or an array of `Employee` objects.
* **Efficient Access:** Arrays provide direct access to elements using their index, making it efficient to retrieve or manipulate specific objects within the collection.
* **Iterating and Processing:** Arrays are easily iterable using loops (like `for` or `for-each`), allowing you to perform operations on all the objects within the array.
* **Simplifying Code:** Instead of declaring multiple individual variables for each object, you can use an array to manage them collectively, reducing code duplication and improving readability.

**Steps to Create and Work with Arrays of Objects**

1. **Define the Class:**

* First, you need to have the class whose objects you want to store in the array. This class defines the data and behavior that each object will have.



2. **Declare the Array:**

* You declare an array of objects using the following syntax:



* For example:



* **Important:** At this stage, the array `students` is just a *reference*. It doesn't yet point to any actual memory location where the `Student` objects will be stored.

3. **Create the Array (Instantiate):**

* You must allocate memory for the array itself using the `new` keyword:



* For example:



* Now `stude ...

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