fileinfo.java

来自「《Java核心技术应用开发》电子工业出版社书籍源代码」· Java 代码 · 共 28 行

package sample;
import java.io.*;
public class FileInfo{
      
   public void info(File f) throws IOException{
       System.out.println("Name: " + f.getName());
       System.out.println("Path: " + f.getAbsolutePath());
       if(f.exists()){
          System.out.println("File is there");
          System.out.println("File can read? " + f.canRead());
          System.out.println("File can write? " + f.canWrite());
          System.out.println("File length is: " + f.length());
       }
       else 
          System.out.println("File doesn't exist");
    }   

   public static void main(String[] args) throws IOException {
      
       if(args.length > 0){
           for(int i = 0; i<args.length; i++){
              File file = new File(args[i]);
              new FileInfo().info(file);
           }
       } else 
           System.out.println("No file to check!");
   }
}