import java.io.*; 
class Main{  
	public static void main(String[] args) throws IOException{         
	
		File path=new File("D:\\jlp1\\jlp2");
		File file=new 
File(path,"jlp.java");
		path.mkdirs();
		file.createNewFile();
		System.out.println("It‘s 
OK."); 
	} 
}
原文地址:http://www.cnblogs.com/lpjia/p/3739430.html