how to create temp file with Java

import java.io.File;
import java.io.IOException;

public class tempFile
{
public static void main(String[] args) throws IOException
{
File f = File.createTempFile("temp_", null);

System.out.println(f.getAbsolutePath());

f.deleteOnExit();

}
}

output:

/tmp/temp_538005290434749678.tmp

/tmp/temp_5224913897241434358.tmp