题解 | #计算某字母出现次数#

import java.util.*; public class Main { public static void main(String [] args){ Scanner sc= new Scanner(System.in); String a= sc.nextLine().toLowerCase(); String a1= sc.nextLine().toLowerCase(); char[] b1= a1.toCharArray(); char[] b= a.toCharArray(); int c=0; for (char i :b){ if(i ==b1[0]){ c++; } } System.out.print(c);

}
    

}