分别统计出字符串中的英文字母、空格、数字和其它字符的个数 - 云代码
- import java.util.Scanner;
- /**
- * 输入一行字符,分别统计出其中英文字母、空格、数字和其它字符的个数。
- */
- public class ex7 {
- public static void main(String args[]) {
- System.out.println("请输入字符串:");
- Scanner scan = new Scanner(System.in);
- String str = scan.next();
- String E1 = "[\u4e00-\u9fa5]";
- String E2 = "[a-zA-Z]";
- int countH = 0;
- int countE = 0;
- char[] arrChar = str.toCharArray();
- String[] arrStr = new String[arrChar.length];
- for (int i = 0; i < arrChar.length; i++) {
- arrStr[i] = String.valueOf(arrChar[i]);
- }
- for (String i : arrStr) {
- if (i.matches(E1)) {
- countH++;
- }
- if (i.matches(E2)) {
- countE++;
- }
- }
- System.out.println("汉字的个数" + countH);
- System.out.println("字母的个数" + countE);
- }
- }