java - 我认为已初始化的变量发送未初始化的错误

Question

我正在尝试与字符串数组进行比较，并根据字符串是否相等返回 true 或 false 值。我在顶部初始化了 finalAnswer，但是当我尝试返回值时，它会提示未初始化的错误。

public static boolean equals(String[] array1, String[] array2) {
    boolean finalAnswer;
    if (array1.length == array2.length) {
        finalAnswer = false;
    }
    else {
        for (int i = 0; i > array1.length; i++) {
            if (array1[i] == array2[i]) {
                finalAnswer = true;
            }
            else {
                finalAnswer = false;
            }
        }
    }
    return finalAnswer;
}

Answer 1

您的逻辑有很多错误，可以通过消除导致编译错误的变量来简化:

public static boolean equals(String[] array1, String[] array2) {
    if (array1.length != array2.length) {
        return false; // you should return false if the lengths are NOT equal
    }
    else {
        for (int i = 0; i < array1.length; i++) { // was >
            if (!array1[i].equals(array2[i])) { // don't compare Strings with ==
                return false; // return immediately if the Strings don't match
            }
        }
    }
    return true;
}