java - 我在 for 循环中大写了太多元素，但仅在特定索引上

Question

我不知道为什么，但在这种方法中，第 5 和第 10 个元素每次都被大写。我找不到原因。例如：传递“ZpglnRxqenU”作为参数应该返回：“Z-Pp-Ggg-Lllll-Nnnnn-Rrrrrr-Xxxxxxx-Qqqqqqqq-Eeeeeeeee-Nnnnnnnnnnn-Uuuuuuuuuuu”，而是返回：“Z-Pp-Ggg-Llll-Nnnnn -RRRRRR-Xxxxxxx-Qqqqqqqq-Eeeeeeeee-Nnnnnnnnnn-UUUUUUUUUUU"

请注意，与其他字符不同，R 和 U 都是大写的。

/**
 * The purpose of this method is to receive a string, deconstruct it by characters
 * and save it in array, then iterate through this array creating a new string
 * where each character will be represented the number of times equivalent to its
 * position in the array + 1 while upperCasing every 1st occurrence of the character
 * and separating every set of character repetitions with "-".
 * @param string
 * @return String
 */
public String builder (String string){

    /*
    Here we split the string we receive by characters and save these characters in
    a new array called strArr.
     */
    String[] strArr = string.split("");
    String finalString = "";

    /*
    We iterate through the array of characters adding "-" each time we start to
    represent a new character.
    We add the characters N times where N is the order of appearance in the string
    we receive as param.
     */
    for (int i = 0; i < strArr.length; i++) {
        if(i > 0){
            finalString += "-";
        }
        for (int j = 0; j < i + 1; j++) {
            if(j == 0){
                /*
                this is upperCasing every 5th and 10th character for some reason
                 */
                // TODO: 26/12/2019 stop upperCasing 5th and 10th element. 
                finalString += strArr[i].toUpperCase();
                continue;
            }
            finalString += strArr[i];
        }
    }
    return finalString;

标签： javaarraysstringfor-loopuppercase

Answer 1

你必须首先添加这一行： string = string.toLowerCase();

公共字符串生成器（字符串字符串）{

 string = string.toLowerCase();
/*
Here we split the string we receive by characters and save these characters in
a new array called strArr.
 */
String[] strArr = string.split("");
String finalString = "";

/*
We iterate through the array of characters adding "-" each time we start to
represent a new character.
We add the characters N times where N is the order of appearance in the string
we receive as param.
 */
for (int i = 0; i < strArr.length; i++) {
    if(i > 0){
        finalString += "-";
    }
    for (int j = 0; j < i + 1; j++) {
        if(j == 0){
            /*
            this is upperCasing every 5th and 10th character for some reason
             */
            // TODO: 26/12/2019 stop upperCasing 5th and 10th element. 
            finalString += strArr[i].toUpperCase();
            continue;
        }
        finalString += strArr[i];
    }
}
return finalString;

}