Can an int be null in Java?

No, an int data type in Java cannot be null. In Java, the int data type is a primitive type that represents a 32-bit signed integer. Primitive types are not objects, so they cannot be null.

If you want to store a null value in a variable in Java, you can use a wrapper class such as Integer. The Integer class is an object that wraps an int value, and it can be assigned the value null.

Here is an example of using an Integer variable to store a null value:

Integer x = null;

if (x == null) {
    System.out.println("x is null");
} else {
    System.out.println("x is not null");
}

This code declares an Integer variable called x and assigns it the value null. It then checks if x is null and prints the appropriate message.

Note that you will need to use the Integer class instead of the int data type whenever you need to store a null value. You will also need to use the Integer class's methods and functions instead of the corresponding int functions. For example, you will need to use Integer.parseInt() instead of Integer.parseInt() to parse a string to an int value.