计算字符串中子字符串出现的次数

String str = "ccc"; String subStr = "cc"; int strLength = str.length(); int subStrLength = subStr.length(); int count = 0; int index = str.indexOf(subStr); while (index != -1) { count++; index = str.indexOf(subStr, index + subStrLength); } System.out.println(count);

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