We are having 2 variants:
1 – when we want to create single folder (C:\first)
2 – when we want to create all tree for folders (C:\1\2\3)
Let’s try to create it:
//First variant
File folder= new File("C:\\first");
file.mkdir();
//Second variant
File folders= new File("C:\\1\\2\\3");
files.mkdirs();
After that we will see all folder which we want.