### **4.2 WordCount**

WordCount is a simple program that counts how often a word occurs in a text file. The code builds a dataset of (String, Int) pairs called counts, and saves the dataset to a file.

The following example submits WordCount code to the Scala shell. Select an input file for the Spark WordCount example. We can use any text file as input.

- Login as user **‘spark’**.

		s := NewScanner(buf)
		s.Split(ScanWords)
		words := strings.Fields(test)
		var wordCount int
		for wordCount = 0; wordCount < len(words); wordCount++ {
			if !s.Scan() {
				break
			}
			got := s.Text()
			if got != words[wordCount] {
				t.Errorf("#%d: %d: expected %q got %q", n, wordCount, words[wordCount], got)
			}
		}
		if s.Scan() {
			t.Errorf("#%d: scan ran too long, got %q", n, s.Text())