Java help reading from a file -


i have section of code dont know with. supposed show dialog box select file , when file selected outputs results in histograph. have working except can not figure out variable need put text2. 

private int[] countletters2()  {   // count 26 letters   int[] count = new int[26];    //get contents file     chooser.showopendialog(null);   file f = chooser.getselectedfile();    try   {    filereader fr = new filereader(f);    bufferedreader br = new bufferedreader(fr);    string s;    while((s = br.readline()) != null)    {     system.out.println(s);   <------simply see if reader , buffer working     }   }   catch(ioexception g) {}      string text2 = ; <------------------------------------this problem    //converts every letter uppercase   text2 = text2.touppercase();      //count occurrence of each letter (case insensitive)   (int = 0; < text2.length(); i++)   {    char character = text2.charat(i);     if ((character >= 'a') && (character <= 'z'))    {     count[(int)character - 65]++; // ascii 'a' 65    }   }   return count; // return count array

move loop counts characgters loop print lines. like

private int[] countletters2()  {   // count 26 letters   int[] count = new int[26];    //get contents file     chooser.showopendialog(null);   file f = chooser.getselectedfile();    try   {    filereader fr = new filereader(f);    bufferedreader br = new bufferedreader(fr);    string s;    while((s = br.readline()) != null)    {     system.out.println(s);        //converts every letter uppercase     string text2 = s.touppercase();        //count occurrence of each letter (case insensitive)     (int = 0; < text2.length(); i++)     {        char character = text2.charat(i);         if ((character >= 'a') && (character <= 'z'))        {         count[(int)character - 65]++; // ascii 'a' 65        }     }    }   }   catch(ioexception g) {}     return count;  }

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