What is SystemUtils.getUserName() in Java?
Overview
getUserName() is a SystemUtils class which is used to return the user name.
The user name is stored as a system property under the name user.name in Java.
How to import SystemUtils
The definition of SystemUtils 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-langpackage, refer to the Maven Repository.
You can import the SystemUtils class as follows:
import org.apache.commons.lang3.SystemUtils;
Syntax
public static String getUserName()
Parameters
The method accepts no parameters.
Return value
This method returns the user name.
Code
import org.apache.commons.lang3.SystemUtils;public class Main{public static void main(String[] args){String userName = SystemUtils.getUserName();System.out.printf("The output of SystemUtils.getUserName() is '%s'.", userName);}}
In the above code, we print the user name returned by the getUserName() method.
Output
The output of the code is as follows:
The output of SystemUtils.getUserName() is 'educative'.
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