java check if array element is null

To check if an element of an array is null in Java, you can use the == operator to compare the element to the null value.

Here's an example of how to check if an element of an array is null:

String[] array = new String[5];

if (array[0] == null) {
  // element is null
} else {
  // element is not null
}

In this example, the if statement will evaluate to true if the first element of the array is null, and false otherwise.

You can also use the == operator to check if an element of an array of any type is null. For example:

Object[] array = new Object[5];

if (array[0] == null) {
  // element is null
} else {
  // element is not null
}

Note that the == operator checks for reference equality, which means that it will return true if the element is null and false if the element is any other value, including an object that has a value of null.

If you want to check if an element of an array is null or has a value of null, you can use the == operator or the .equals method, depending on the type of the element. For example:

String[] array = new String[5];

if (array[0] == null || array[0].equals(null)) {
  // element is null or has a value of null
} else {
  // element is not null
}