To check if two arrays are equal in Java, you can make use of the Arrays.equals() method from the java.util package. This method compares the contents of two arrays and returns true if they are equal, and false otherwise.

Here is an example of how you can use the Arrays.equals() method to check if two arrays are equal:

import java.util.Arrays;

public class ArrayEquality {

    public static void main(String[] args) {
        int[] array1 = {1, 2, 3, 4, 5};
        int[] array2 = {1, 2, 3, 4, 5};
        int[] array3 = {1, 2, 3, 4};

        boolean result1 = Arrays.equals(array1, array2);
        boolean result2 = Arrays.equals(array1, array3);

        System.out.println("Array1 is equal to Array2: " + result1);
        System.out.println("Array1 is equal to Array3: " + result2);
    }
}

Output:

Array1 is equal to Array2: true
Array1 is equal to Array3: false

In the example above, we have three arrays: array1, array2, and array3. We use the Arrays.equals() method to compare array1 with array2 and array3. The results are then printed to the console.

Keep in mind that Arrays.equals() compares the elements of the arrays in the same order. If the order of elements is not important and you just want to check for set equality, you could sort the arrays and then compare them using the Arrays.equals() method.

By using the Arrays.equals() method, you can easily check the equality of two arrays in Java and make your code more efficient and readable.