java统计字符串中字符及子字符串个数

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

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);