What is ObjectUtils.anyNotNull in Java?
Overview
anyNotNull() is a ObjectUtils that accepts a list of objects and checks if the objects in the list are not null.
The method returns false if all the objects are null, or if the array is null or empty. Otherwise, it returns true.
How to import ObjectUtils
The definition of ObjectUtils can be found in the Apache Commons Lang package, which we can add to the Maven project by adding the following dependency to the pom.xml file:
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.12.0</version>
</dependency>
For other versions of the commons-lang package, refer to the Maven repository.
You can import the ObjectUtils class as follows:
import org.apache.commons.lang3.ObjectUtils;
Syntax
public static boolean anyNotNull(final Object... values)
Parameters
final Object... values: The list of objects to test.
Return value
The anyNotNull method returns true if any of the objects in the list are not null. Otherwise, it returns false.
Code
import org.apache.commons.lang3.ObjectUtils;import java.util.Arrays;public class Main {public static void main(String[] args) {Object[] objects = {"hi", 3, 3.24};System.out.printf("The output of ObjectUtils.anyNotNull() for the string - '%s' is %s", Arrays.toString(objects), ObjectUtils.anyNotNull(objects));System.out.println();objects = null;System.out.printf("The output of ObjectUtils.anyNotNull() for the string - '%s' is %s", Arrays.toString(objects), ObjectUtils.anyNotNull(objects));System.out.println();objects = new Object[]{null, null, null};System.out.printf("The output of ObjectUtils.anyNotNull() for the string - '%s' is %s", Arrays.toString(objects), ObjectUtils.anyNotNull(objects));System.out.println();objects = new Object[]{1.2, null, null};System.out.printf("The output of ObjectUtils.anyNotNull() for the string - '%s' is %s", Arrays.toString(objects), ObjectUtils.anyNotNull(objects));System.out.println();objects = new Object[0];System.out.printf("The output of ObjectUtils.anyNotNull() for the string - '%s' is %s", Arrays.toString(objects), ObjectUtils.anyNotNull(objects));System.out.println();}}
Output
The output of the code is as follows:
The output of ObjectUtils.anyNotNull() for the string - '[hi, 3, 3.24]' is true
The output of ObjectUtils.anyNotNull() for the string - 'null' is false
The output of ObjectUtils.anyNotNull() for the string - '[null, null, null]' is false
The output of ObjectUtils.anyNotNull() for the string - '[1.2, null, null]' is true
The output of ObjectUtils.anyNotNull() for the string - '[]' is false
Explanation
Example 1
objects = ["hi", 3, 3.24]
The method returns true because at least one of the objects in the list is not null.
Example 2
objects = null
The method returns false because the array/list of objects points to null.
Example 3
objects = [null, null, null]
The method returns false because all the values in the array/list of objects are null.
Example 4
objects = [1.2, null, null]
The method returns true because at least one of the objects in the list is not null.
Example 5
objects = []
The method returns false because the array/list of objects is empty.
