Question

Return true if the given string contains between 1 and 3 'e' chars

Java Exercise

Answer 1

import java.util.Scanner;

public class OneThreeEs {

    public static boolean oneThreeEs(String s) {
        int countE = 0;
        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) == 'e')
                ++countE;
        }
        return countE >= 1 && countE <= 3;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter a string: ");
        String s = in.nextLine();
        System.out.println(oneThreeEs(s));
    }
}