該方法應該接受一個字符串並將字符串輸出爲字符,但它應該是大小的兩倍。例如:字符串是「PaRty」 返回應該是'P','P','a','a','R','R','t','t','Y','Y 「關閉字符串的一個錯誤
對於我的代碼,當我運行它說,該陣列的元素不同[]的測試;預計:但:
我無法弄清楚了是錯誤的,希望有人可以幫點什麼爲了讓我理解並做好這項工作?如果我關閉了,請解釋一下?
//Implementing the second method: toExpandedArray, which works with
//a string and then returns chars of that string.
public static char[] toExpandedArray(String string)
{
//Initializing variable needed to char the string
char[] charArray = new char[string.length() * 2];
//The loop that will turn the string into characters.
for (int i = 0; i < string.length(); i++)
{
charArray[i] = string.charAt(i) ;
charArray[i+1] = charArray[i];
i++;
}
//Returning the characters as an array.
return charArray;
謝謝!是因爲前面的charArray初始化爲string.length * 2而導致2 * i的原因? – user3404391
爲了將'0'處的字符複製到'0'和'1','1'處的字符被複制到'2'和'3','2'處的字符被複制到'4', '5'等等。 – rgettman
哦,好的,謝謝! – user3404391