for循环中的空指针异常

Question

我尝试通过将数组转换为for循环来获取我不希望从字符串数组中获取的字符串.

我尝试以下代码,但我得到java.lang.NullPointerException,我不知道为什么.

谢谢你的帮助.

String unWanted = new String[]{"","a","b","c"};

String[] temp = new String[unWanted.length-1];
int p = 0;
for (int k = 0; k < unWanted.length; k++){
    if(unWanted[k].equals("") == false)
    {
        temp[p] = unWanted[k];
        p++;
    }
}

Answer 1

这里唯一的错误是String数组声明

String[] unWanted = new String[]{"","a","b","c"};