Counting letter occurrence

Question

The program needs to count and display the number of times that the specified charector appears in the text file.

Currently turning up zero for the total. I\'m not i

Answer 1

String line=""
while(inputFile.hasNext()) {
  line = inputFile.nextLine();
  for(int i=0; i<line.length(); i++ ){
     if (line.charAt(i)== letter)                                    
         count++;          

 }
}

Answer 2

There is bug in your code.Correct code below-

   String fileName;    // Holds the name of the file
    String letter;      // Letter to search for in the file

    // Get the name of the file and character from the user
    fileName = "C:\\bin\\GWT.txt";
    letter = "X";


    // Open the file for reading
    File file = new File(fileName);         
    Scanner inputFile = new Scanner(file);  // Declare new scanner object for file reading


    // Set accumulator to zero
    int count = 0;
    while(inputFile.hasNext()) {
      if (inputFile.nextLine().toLowerCase().contains(letter.toLowercase())) { 
           count++;          // add letter occurrence
       }
    }
    System.out.println(count);

Answer 3

This answer is assuming each line in your text file contains just one letter as your question suggests.

You need to wrap your if statement in a loop as currently you are only checking the first line of the file:

     while(inputFile.hasNext()) {
         if (inputFile.nextLine().equalsIgnoreCase(letter))    {                                

             count++;          // add letter occurrence

             total += count;   // add the letter occurrence to the total
         }
     }

Also you can replace:

count++;
total+= count;

with just

total++;

Answer 4

    BufferedReader reader = new BufferedReader(new FileReader("somefile.txt"));
    int ch;
    char charToSearch='a';
    int counter=0;
    while((ch=reader.read()) != -1) {
        if(charToSearch == (char)ch) {
            counter++;
        }
    };
    reader.close();

    System.out.println(counter);

Is this of any help?