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What is SystemUtils.getJavaIoTmpDir() in Java?

abhilash

Grokking Modern System Design Interview for Engineers & Managers

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getJavaIoTmpDir() is a staticthe methods in Java that can be called without creating an object of the class. method of the SystemUtils class which is used to return the temporary directory used by Java for input/output operations as an instance of the File class. The path to the Java IO temporary directory is stored as a system property under the name java.io.tmpdir.

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-lang package, refer to the Maven Repository.

You can import the SystemUtils class as follows:


import org.apache.commons.lang3.SystemUtils;

Syntax

public static File getJavaIoTmpDir()

Parameters

The method accepts no parameters.

Return value

This method returns the File object pointing to the Java IO temporary directory.

Code

import org.apache.commons.lang3.SystemUtils;
import java.io.File;
public class Main{
public static void main(String[] args){
File javaIoTmpDir = SystemUtils.getJavaIoTmpDir();
System.out.printf("The absolute path of the java io temp directory is '%s'.", javaIoTmpDir.getAbsolutePath());
}
}

Output

The output of the code will be as follows:

The absolute path of the java io temp directory is '/var/folders/dt/blzdgmcs3vq7hl7ftp997r8w0000gn/T'.

Explanation

Running the code above in your system can give a different output depending on your machine.

In the code above, we are using the getJavaIoTmpDir() method to get the File object pointing to the temporary directory that java uses for IO operations.

Next, we print the absolute path of the temporary directory used for input/output by Java.

RELATED TAGS

java
communitycreator

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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