题解 | #计算某字符出现次数#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        //获取字符串
        String string = scanner.nextLine();
        //获取字符
        String myChar = scanner.nextLine();

        //开始写逻辑计算
        String lowerString = string.toLowerCase();
        String lowerMyChar = myChar.toLowerCase();
        int count = 0;
        for(int i = 0 ; i <= lowerString.length() - 1 ; i++){
            if(lowerString.charAt(i) == lowerMyChar.charAt(0)){
                count++;
            }
        }
        System.out.println(count);
    }
}