Close

Java Utils - Objects.isNull() Examples

[Last Updated: Nov 8, 2025]

Java Utils Java Java API

Class:

java.util.Objects

Method:

public static boolean isNull(Object obj)

Returns true if the provided reference is null otherwise returns false. Useful if used as a java.util.function.Predicate.

Examples

package com.logicbig.example.objects;

import java.util.Objects;

public class IsNullExample {

    public static void main(String... args) {
        String str = "testString";
        //equivalent to obj == null;
        boolean b = Objects.isNull(str);
        System.out.println(b);
    }
}

Output

false

package com.logicbig.example.objects;

import java.util.Arrays;
import java.util.List;
import java.util.Objects;

public class IsNullExample2 {

    public static void main(String... args) {
        List<String> list = Arrays.asList("a", "b", null, null);
        boolean b = list.stream().anyMatch(Objects::isNull);
        System.out.println(b);
    }
}

Output

true

See Also