java - Cannot print out result -

i try print out text: aloha prints nothing out while if delete loop right above text, prints. can explain me? in case, if want keep loop (for(s=5; s<0;--s)), how can make work? thanks

import java.io.*;  public class email13 {     static boolean isvalidemailcharacter(char c){         boolean result = false;         if((c>='a'&&c<='z')||(c>='a'&&c<='z')||(c>='0'&&c<='9')||(c=='.')||(c=='-')||(c=='+'))             result = true;         return result;     }      public static void main(string[] args) throws exception{         bufferedreader cin, fin;         cin = new bufferedreader(new inputstreamreader(system.in));         //description         system.out.println("programmer: minh nguyen");         system.out.println("description: program start final project.");         system.out.println();              string namein, nameout, dein, deout;         namein="";         nameout="";         dein = "filecontainingemails.txt";          system.out.print("enter input filename [default:" + dein + "]: ");         namein = cin.readline();          if(namein.compareto("")==0){             namein = dein;             deout = "copypastemyemails.txt";             system.out.print("enter output filename [default:" + deout + "]: ");             nameout = cin.readline();         if(nameout.compareto("")==0)            nameout = deout;         }         else if(namein.compareto("")>0){             deout = namein;             system.out.print("enter output filename [default:" + deout + "]: ");             nameout = cin.readline();             if(nameout.compareto("")==0)                 nameout = namein;        }        fin = new bufferedreader(new filereader(namein));        //read input file        while(true){            if(!fin.ready()) break;            string linefromfile;            linefromfile = fin.readline();            int s, e, hasdot, count;            count = 0;            (int = 0; < linefromfile.length(); i++) // each char in string...                       {                if(linefromfile.charat(i)=='@'){                                            for(s=5; s<0;--s)                        system.out.println("aloha");                                                                       }           }       }       fin.close();        printwriter fout;       fout = new printwriter(new filewriter(nameout));       fout.close();               }  } 

s not less 0, never enters loop

for(s=5; s<0;--s) 

just make

for(s=5; s>0;--s)