import java.util.Scanner;
public class Counter {
static Scanner scanner = new Scanner(System.in);
public static void count(String s) {
int low, upper, num, others;
low = upper = num = others = 0;
for (int i = 0; i < s.length(); i++) {
if (Character.isDigit(s.charAt(i))) {
num++;
continue;
if (Character.isLowerCase(s.charAt(i))) {
low++;
continue;
if (Character.isUpperCase(s.charAt(i))) {
upper++;
continue;
} else {
others++;
System.out.println(" 大写字母的个数为：" + upper + "\n 小写字母的个数为：" + low+ "\n 数字的个数为： " + num + "\n 其他字符的个数为： " + others);
public static void subCounter(String str1, String str2) {
int counter = 0;
for (int i = 0; i <= str1.length() - str2.length(); i++) {
if (str1.substring(i, i + str2.length()).equalsIgnoreCase(str2)) {
counter++;http://www.huiyi8.com/chajian/ jquery插件库
System.out.println("子字符串的个数为： " + counter);
public static void main(String[] args) {
// TODO Auto-generated method stub
System.out.println("请输入一个字符串:");
String string = scanner.nextLine();
System.out.println("-----------------------------");
// 查询在这个字符串中存在多少个子字符串str。
System.out.println("请输入一个您想查询的子字符串:");
String str = scanner.nextLine();
subCounter(string, str);

java统计字符串中字符及子字符串个数,布布扣,bubuko.com

java统计字符串中字符及子字符串个数