题解 | #计算某字符出现次数#
计算某字符出现次数
https://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
代码实现：
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner s = new Scanner(System.in);
String input1= s.nextLine();
String input2 = s.nextLine();
String split3 = input1.toUpperCase().replaceAll(input2.toUpperCase(),"");
System.out.println(input1.length() - split3.length());
}
}
