java实现创建文件夹

package test;
public class muluTest
{
public static void main(String[] args)
{
  muluTest mulutest = new muluTest();
  mulutest.newFolder("D://abcds");
}
public   void   newFolder(String   folderPath)
{
  String   filePath   =   folderPath;
  filePath   =   filePath.toString();   
  java.io.File   myFilePath   =   new   java.io.File(filePath);
  try
  {
   if(myFilePath.isDirectory())
   {
    System.out.println("the directory is exists!");
   }
   else
   {
    myFilePath.mkdir();
    System.out.println("新建目录成功");
   }
  }
  catch   (Exception   e)
  {
   System.out.println("新建目录操作出错");
   e.printStackTrace();
  }
}
}