String类练习二

package com.jenthor;public class StringGet {/* * 获取一个字符串在另一个字符串中出现的次数 例："abkkwjkejkkauukkdhkk", "kk"字符串出现的次数。 */public static void main(String[] args) {String s = "abkkwjkejkkauukkdhkk";String key = "kk";int x = getcount(s, key);System.out.println(x);}public static int getcount(String str, String key) {int count = 0;int index = 0;while (str.indexOf(key,index)!=-1) {index = str.indexOf(key,index) + key.length();count++;}return count;}}