题解 | #统计字符#
统计字符
https://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
import java.util.Scanner; // 想说什么却不知说什么 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); // 注意 hasNext 和 hasNextLine 的区别 while (in.hasNextLine()) { String line = in.nextLine(); int eng = 0; int nul = 0; int num = 0; int other = 0; for (int i = 0; i < line.length(); i++) { char curCh = line.charAt(i); if ((curCh >= 'a' && curCh <= 'z' ) || (curCh >= 'A' && curCh <= 'Z')) { eng++; } else if (curCh == ' ') { nul++; } else if (curCh >= '0' && curCh <= '9') { num++; } else { other++; } } System.out.println(eng); System.out.println(nul); System.out.println(num); System.out.println(other); } } }