file类列出当前目录下的文件

file类列出当前目录下的文件

可用于递归方法的示例

 

mport java.io.*;                                      
public class F{                                        
 public static void main(String args[]){       
  File f=new File(".");                        
  //判断是否目录                               
  if(f.isDirectory()){                         
   //列出此目录下的所有文件                
   String dir[]=f.list();                  
   for(int i=0;i<dir.length;i++){          
    System.out.println(dir[i]);        
   }                                       
  }else{                                       
   System.out.println("不是目录");         
  }                                            
 }                                                 
}