如何计算Java中txt文件中某个特定单词的出现？

Question

I'm trying to just create a basic word counter for a specific word inside the "list.txt" document. The code I'm using right now is not scanning "Customer" even though Customer appears a few times in the word document already, I've tried making a String variable with the value of "Customer" instead but that also didn't work, could anyone perhaps correct where I've gone wrong?

static int totalContracts() throws FileNotFoundException 
{
    Scanner scannerInput = new Scanner("list.txt");
    int count = 0;
    while (scannerInput.hasNext()) 
    { 
        String nextWord = scannerInput.next();
        System.out.println(nextWord);
        if (nextWord.equals("Customer")) 
        {
            count++;
        }
    }
    return count;
}

Answer 1

You did not open the file.

Scanner scannerInput = new Scanner(new File("list.txt"));

If you use new Scanner("list.txt") it just scan the text "list.txt".

Answer 2

You passed a parameter of type String to the Scanner in which the Scanner would only produce values from that specified String.

In order for the scanner to produce values from an actual file, you can pass in a File object defining the path to the file.

To do this, you should initialize a new File object and pass it the path to the file you're trying to scan. Once you do this you can then pass the File object to the Scanner.

File file_to_scan = new File("list.txt");
Scanner scanner_input = new Scanner(file_to_scan);