// Program to test solutions to problem #8 on the cse142 midterm, winter 2011.
// Fill in your solution to numWords, then compile and run the program.

import java.util.*;

public class Test8 {
    public static int numWords(String s) {
        // fill in your solution here
        // you can also rename the parameter above
    }

    // this is the sample solution
    public static int numWords2(String s) {
        int count = 0;
        boolean inWord = false;
        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) == ' ') {
                inWord = false;
            } else if (!inWord) {
                count++;
                inWord = true;
            }
        }
        return count;
    }

    public static void main(String[] args) {
        test("how    many   words   here?");
        test("to be or not to be, that is the question");
        test("  how  about  merry-go-round     ");
        test(" !&$%--$$!!*()   foo_bar_baz   ");
        test("x");
        test("     ");
        test("");
    }

    public static void test(String s) {
        System.out.println("testing \"" + s + "\"");
        int num1 = 0;
        boolean fail = false;
        try {
            num1 = numWords(s);
        } catch (RuntimeException e) {
            System.out.println("threw " + e);
            fail = true;
        }
        int num2 = numWords2(s);
        System.out.println("correct = " + num2 + ", theirs = " + num1);
        if (!fail && num1 == num2) {
            System.out.println("PASS");
        } else {
            System.out.println("FAIL");
        }
        System.out.println();
    }
}