第六章第二十三题（指定字符的出现次数）(Occurrences of a specified character) - 编程练习题答案

// https://cn.fankuiba.com
import java.util.Scanner;

public class Ans6_23_page202 {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter a string and a character: ");
        String aStr = input.next();
        char aChar = input.next().charAt(0);
        System.out.println(count(aStr,aChar));
    }
    public static int count(String str, char a) {
        int count = 0;
        for (int i = 0; i < str.length(); i ++) {
            if (str.charAt(i) == a)
                count++;
        }
        return count;
    }
}