题解 | #统计字符串中字母出现次数#
统计字符串中字母出现次数
https://www.nowcoder.com/practice/83350872bdb5406fa706895d5efb1c55
import java.util.Scanner; public class Main { public static void main(String[] args) { String string = "H e l l o ! n o w c o d e r"; Scanner scanner= new Scanner(System.in); String word = scanner.next(); scanner.close(); System.out.println(check(string, word)); } public static int check(String str, String word) { char c=word.charAt(0);//将第二个字符串用字符表示 int count=0; for(int i=0 ; i<str.length();i++){//遍历第一个字符串 if(c==str.charAt(i))//比较每个字符与c是否相同 count++;//相同则计数 } return count; } }