Java gives a strategy to looking at two Array List. The ArrayList.equals() is the strategy utilized for looking at two Array List. It thinks about the Array records as, both Array records ought to have a similar size, and all comparing sets of components in the two Array records are equivalent.

Example:

Input :

ArrayList1 = [1, 2, 3, 4],
        ArrayList2 = [1, 2, 3, 4]

Output:

Array List are equal

Input :

 ArrayList1 = [1, 2, 3, 4],
        ArrayList2 = [4, 2, 3, 1]

Output:

Array List are not equal

Syntax:

boolean equals(Object o)

Parameters: This capacity has a solitary boundary which is an item to be analyzed for correspondence.

Returns: This strategy returns True if Array records are equivalent.

Implementation:

// Comparing two ArrayList In Java
import java.util.ArrayList;

public class GFG {
	public static void main(String[] args)
	{

		// create two Array List
		ArrayList ArrayList1
			= new ArrayList();
		ArrayList ArrayList2
			= new ArrayList();

		// insert items in AyyarList 1
		ArrayList1.add("item 1");
		ArrayList1.add("item 2");
		ArrayList1.add("item 3");
		ArrayList1.add("item 4");

		// insert items in AyyarList 2
		ArrayList2.add("item 1");
		ArrayList2.add("item 2");
		ArrayList2.add("item 3");
		ArrayList2.add("item 4");

		// Display both ArrayList
		System.out.println(" ArrayList1 = " + ArrayList2);
		System.out.println(" ArrayList1 = " + ArrayList1);

		// compare ArrayList1 with ArrayList2
		if (ArrayList1.equals(ArrayList2) == true) {
			System.out.println(" Array List are equal");
		}
		else
		// else block execute when
		// ArrayList are not equal
		{
			System.out.println(" Array List are not equal");
		}

		// insert one more item in ArrayList 1
		System.out.println(
			"\n Lets insert one more item in Array List 1");
		ArrayList1.add("item 5");

		// display both ArrayList
		System.out.println(" ArrayList1 = " + ArrayList1);
		System.out.println(" ArrayList = " + ArrayList2);

		// again compare ArrayList 1 with ArrayList 2
		if (ArrayList1.equals(ArrayList2) == true) {
			System.out.println(" Array List are equal");
		}
		else {
			System.out.println(" Array List are not equal");
		}
	}
}

Output: 

ArrayList1 = [item 1, item 2, item 3, item 4]
 ArrayList1 = [item 1, item 2, item 3, item 4]
 Array List are equal

 Lets insert one more item in Array List 1
 ArrayList1 = [item 1, item 2, item 3, item 4, item 5]
 ArrayList = [item 1, item 2, item 3, item 4]
 Array List are not equal