What is StringUtils.isNotEmpty in Java?

How to import `StringUtils`

The definition of StringUtils 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 StringUtils class as follows.

import org.apache.commons.lang3.StringUtils;

Syntax

public static boolean isNotEmpty(CharSequence cs)

Parameters

CharSequence cs: the character sequence/string to check.

Return value

This method returns true if the string is not null or if the length of the string is greater than zero; otherwise, the function returns false.

import org.apache.commons.lang3.StringUtils;
public class Main {
    public static void main(String[] args) {
        // Example 1
        String s = "543234";
        System.out.printf("The output of StringUtils.isNotEmpty() for the string - '%s' is %s", s, StringUtils.isNotEmpty(s));
        System.out.println();
        // Example 2
        s = "";
        System.out.printf("The output of StringUtils.isNotEmpty() for the string - '%s' is %s", s, StringUtils.isNotEmpty(s));
        System.out.println();
        // Example 3
        s = null;
        System.out.printf("The output of StringUtils.isNotEmpty() for the string - '%s' is %s", s, StringUtils.isNotEmpty(s));
        System.out.println();
    }
}

Output

The output of the code will be as follows.

The output of StringUtils.isNotEmpty() for the string - '543234' is true
The output of StringUtils.isNotEmpty() for the string - '' is false
The output of StringUtils.isNotEmpty() for the string - 'null' is false