In Java, we can use System.getProperty("java.io.tmpdir") to get the default temporary file location.
- For Windows, the default temporary folder is
%USER%\AppData\Local\Temp - For Linux, the default temporary folder is
/tmp
1. java.io.tmpdir
Run the below Java program on a Ubuntu Linux.
TempFilePath1.java
package com.favtuts.io.temp;
public class TempFilePath1 {
public static void main(String[] args) {
String tmpdir = System.getProperty("java.io.tmpdir");
System.out.println("Temp file path: " + tmpdir);
}
}
Output
Temp file path: /tmp2. Create Temporary File
Alternatively, we can create a temporary file and substring the file path to get the temporary file location.
2.1 Java NIO example.
TempFilePath2.java
package com.favtuts.io.temp;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
public class TempFilePath2 {
public static void main(String[] args) {
// Java NIO
try {
Path temp = Files.createTempFile("", ".tmp");
String absolutePath = temp.toString();
System.out.println("Temp file : " + absolutePath);
String separator = FileSystems.getDefault().getSeparator();
String tempFilePath = absolutePath
.substring(0, absolutePath.lastIndexOf(separator));
System.out.println("Temp file path : " + tempFilePath);
} catch (IOException e) {
e.printStackTrace();
}
}
}
Output
Temp file : /tmp/log_11536339146653799756.tmp
Temp file path : /tmp2.2 Java IO example.
TempFilePath3.java
package com.favtuts.io.temp;
import java.io.File;
import java.io.IOException;
public class TempFilePath3 {
public static void main(String[] args) {
// Java IO
try {
File temp = File.createTempFile("log_", ".tmp");
System.out.println("Temp file : " + temp.getAbsolutePath());
String absolutePath = temp.getAbsolutePath();
String tempFilePath = absolutePath
.substring(0, absolutePath.lastIndexOf(File.separator));
System.out.println("Temp file path : " + tempFilePath);
} catch (IOException e) {
e.printStackTrace();
}
}
}
Output
Temp file : /tmp/log_9219838414378386507.tmp
Temp file path : /tmpDownload Source Code
$ git clone https://github.com/favtuts/java-core-tutorials-examples
$ cd java-io/temp