KwCheng's blog

In File class , there is a method , mkdir() , which can be used to create directory.

The example is as below:

boolean success = (new File("directoryName")).mkdir();

if (!success) 

{

 System.out.println("Directory create failed!!");

}

In File class , it also has another method , mkdirs() , we can use this method if we want to create hierarchical directory .

for example:

This example will create two directory , one is datasets directory , and the other is class_2 directory.

String classNum = "datasets\\class_"+2;

boolean success = (new File(classNum)).mkdirs();

if(!success)

{

System.out.println("directory is created failed...");

}