Java method to count the number of repeated characters in strings

This article describes the method of java to count the number of repeated characters in strings. Share it for your reference, as follows:

 package com;import org.junit.Test;/** * Statistics the number of times a string appears in a number of repeated characters* * @author zdw * */public class StringTest{ @Test public void test() { String s = "fdfaacceeeeeeeeeeegghikkkkkokoooo"; count(s); } public static void count(String str) { // Used to store the number of times az appears int[] nums = new int[26]; for (char i : str.toCharArray()) { // If (i >= 97 && i <= 123) { // Just accumulate in its corresponding index bit nums[i - 97]++; } } for (int i = 0; i < nums.length; i++) { // Only display the occurrence of if (nums[i] != 0) { System.out.println((char) (97 + i) + ":" + nums[i]); } } }}

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