Array of Objects in Java

Learn how to create an array of objects in java with example code – An array of user defined class objects can also be created the same way as we create array of built-in type.

For example, here is an array for 5 int type.

int [] numbers = new int[5];

Similarly, an Array of 5 objects of the class Car can be created as below.

Car[] obj = new Car[5];

In an array of objects, all the objects will be of same class. [ Recommend to read how to create an object of a class in java]

 

We have created array for 5 Car objects in which we can store 5 objects of Car class.

Now for each 0 to 4 slot, we can create Car object as below.

obj[0] = new Car();

obj[1] = new Car();

obj[2] = new Car();

obj[3] = new Car();

obj[4] = new Car();

 

Array of objects java example

This program creates an array of 5 objects of class Car. Set the name of each car. Using for loop, it will retrieve each array elements and display the names of the cars on console.

 

/*
 * Array of objects in java example program
 */

class Car {

	private String name;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
}

/*
 * Test array of objects
 */
public class Sample {

	public static void main(String[] args) {

		// Create an array of 5 student objects.
		Car[] obj = new Car[5];

		// Create first car object
		obj[0] = new Car();
		// Set car names
		obj[0].setName("Maruti");

		obj[1] = new Car();
		obj[1].setName("Honda");

		obj[2] = new Car();
		obj[2].setName("Ford");

		obj[3] = new Car();
		obj[3].setName("Hundai");

		obj[4] = new Car();
		obj[4].setName("Nissan");

		// Display all cars

		for (int i = 0; i < 5; ++i) {
			System.out.println("Car : " + obj[i].getName());
		}

	}

}


 

Output:
Car : Maruti
Car : Honda
Car : Ford
Car : Hundai
Car : Nissan



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