题解 | #计算某字符出现次数#

/*
*This is a solution by using Java language.
*Author ChrisJohnson 
*Email:chrisjohnsoncode@outlook.com
*/
import java.util.Scanner;


public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String s1=in.nextLine().toUpperCase();
        String s2=in.nextLine().toUpperCase();
        String tempStr=s1.replace(s2,"");
        System.out.println(s1.length()-tempStr.length());
    }
}