one simple question

[ishikha]

hi,

That is what i am asking how i will get the last modified date and how i will compare them


ishikha

[Dillinger4]

I wasnt sure what criteria you wanted to use in the comparision process so i just coded an example of getting the last modified dates for the files specified. Also im not sure if you know but the modification date changes when class files are recompiled even if they have not been been modified.

    import java.io.*;
  import java.util.Date; 

  class FileCompare {
    public static void main(String[] args){

    BufferedReader buff;
    String file1 = null; 
    String file2 = null; 
    buff = new BufferedReader(new InputStreamReader(System.in));
     
   try{
    System.out.println("Please enter the first file to compare"); 
    file1 = buff.readLine();
    System.out.println("Please enter the second file to compare");  
    file2 = buff.readLine(); 
   }catch(Exception e){System.err.println(e);}
    compareFiles(file1,file2); 
  }
  public static void compareFiles(String file1, String file2){
    
    File f1 = new File(file1); 
    File f2 = new File(file2);
    if(f1.isFile() && f2.isFile()){ 
     Date d1 = new Date(f1.lastModified()); 
     Date d2 = new Date(f2.lastModified());
     System.out.println(d1);
     System.out.println(d2);
     }else{System.out.println("Only files must be specified");}
    }
   }