Creating a temporary folder can be accomplished using Path createTempDirectory​(Path dir, String prefix, FileAttribute<?>... attrs). This is a static method in the Files class that can be used as follows:

• Let's create a temporary folder in the OS's default location with no prefix:

// C:UsersAnghelAppDataLocalTemp8083202661590940905
Path tmpNoPrefix = Files.createTempDirectory(null);

• Let's create a temporary folder in the OS's default location with a custom prefix:

// C:UsersAnghelAppDataLocalTemplogs_5825861687219258744
String customDirPrefix = "logs_";
Path tmpCustomPrefix 
  = Files.createTempDirectory(customDirPrefix);

• Let's create a temporary folder in a custom location with a custom prefix:

// D:	mplogs_10153083118282372419
Path customBaseDir 
  = FileSystems.getDefault().getPath("D:/tmp");
String customDirPrefix = "logs_";
Path tmpCustomLocationAndPrefix 
  = Files.createTempDirectory(customBaseDir, customDirPrefix);

Creating a temporary file can be accomplished via Path createTempFile​(Path dir, String prefix, String suffix, FileAttribute<?>... attrs). This is a static method in the Files class that can be used as follows:

• Let's create a temporary file in the OS's default location with no prefix and suffix:

// C:UsersAnghelAppDataLocalTemp16106384687161465188.tmp
Path tmpNoPrefixSuffix = Files.createTempFile(null, null);

• Let's create a temporary file in the OS's default location with a custom prefix and suffix:

// C:UsersAnghelAppDataLocalTemplog_402507375350226.txt
String customFilePrefix = "log_";
String customFileSuffix = ".txt";
Path tmpCustomPrefixAndSuffix 
  = Files.createTempFile(customFilePrefix, customFileSuffix);

• Let's create a temporary file in a custom location with a custom prefix and suffix:

// D:	mplog_13299365648984256372.txt
Path customBaseDir 
  = FileSystems.getDefault().getPath("D:/tmp");
String customFilePrefix = "log_";
String customFileSuffix = ".txt";
Path tmpCustomLocationPrefixSuffix = Files.createTempFile(
  customBaseDir, customFilePrefix, customFileSuffix);

In the following sections, we'll take a look at the different ways we can delete a temporary folder/file.