Read Data From Text File And Sum Numbers

Question

I want to read in data from a text file which is full of integers and have the program print those integers out to the screen while summing them. This shouldn\'t be hard, b

Answer 1

1. Your i is never Incremented.

2. You are not adding up numbers.

3. addstuff(diskScanner) is a static memeber, so call it with class name with dot operator.

Eg:

Add.addstuff(diskScanner);

   static void addstuff(Scanner aScanner)
{
    int i = 0;
    long l = 0;


    while(i < 25)
    {
        l = i + l;
        i++;
    }

    System.out.println(l);



}

Answer 2

In addition to lockstock's answer, you might want to consider adding textfile.hasNext() OR textfile.hasNextInt() for your while loop.

static void filereader(Scanner textfile) {
int sum = 0;          
while(textfile.hasNextInt()) {
    int nextInt = textfile.nextInt();
    System.out.println(nextInt);
    sum += nextInt;
}

}