统计一个字符串中出现最多的字符个数

[code="java"] package date0513; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; /** * @author tonyJ
2011-5-13 下午02:05:00 */ public class Test01 { public static void main(String[] args) { countMaxStr("111dfasfdddd"); } @SuppressWarnings("unchecked") public static void countMaxStr(String str) { char[] c = str.toCharArray(); Map<character integer> map = new HashMap<character integer>(); for (int i = 0; i iter = map.entrySet().iterator(); int max = 0; char ch = ' '; while (iter.hasNext()) { Map.Entry entry = (Entry) iter.next(); if ((Integer) entry.getValue() &gt; max) { max = (Integer) entry.getValue(); ch = (Character) entry.getKey(); } } System.out.println("最多的字符是：" + ch); System.out.println("出现的次数是：" + max); } } [/code]</character></character>