Java 自定义等级字符串比较逻辑分析

public class TestMap {
    public static void main(String[] args) {
        String str = "AAA+";
        String str1 = "BBB+";
        System.out.println(doAppraise("A", "AA")); // false
    }

    public static boolean doAppraise(String str, String str2) {
        char[] appraiseMoody = splitString(str);
        char[] appraiseLimit = splitString(str2);
        boolean result = false;
        result = bijiao(appraiseMoody, appraiseLimit);
        return result;
    }

    public static boolean bijiao(char[] appraiseMoody, char[] appraiseLimit) {
        char[] jia = "+".toCharArray();
        char[] jian = "-".toCharArray();
        int length = appraiseMoody.length;
        int lengthLimit = appraiseLimit.length;
        boolean result = false;

        if (((appraiseMoody[0] == jia[0]) || (appraiseMoody[0] == jian[0])) &&
            ((appraiseLimit[0] == jia[0]) || (appraiseLimit[0] == jian[0]))) {
            result = shifouxiangt(appraiseMoody[0], appraiseLimit[0]);
        } else {
            if (appraiseMoody[0] == appraiseLimit[0]) {
                if (length == 1 && lengthLimit == 1) {
                    return true;
                } else if (length == 1 && lengthLimit > 1) {
                    if (appraiseLimit[1] == jia[0]) {
                        return false;
                    } else {
                        return false;
                    }
                } else if (length > 1 && lengthLimit == 1) {
                    if (appraiseMoody[0] == jia[0]) {
                        return true;
                    } else {
                        return false;
                    }
                } else {
                    if (((appraiseMoody[1] == jia[0]) || (appraiseMoody[1] == jian[0])) &&
                        ((appraiseLimit[1] == jia[0]) || (appraiseLimit[1] == jian[0]))) {
                        result = shifouxiangt(appraiseMoody[1], appraiseLimit[1]);
                    } else {
                        if (appraiseMoody[1] == appraiseLimit[1]) {
                            if (length == 2 && lengthLimit == 2) {
                                return true;
                            } else if (length == 2 && lengthLimit > 2) {
                                if (appraiseLimit[1] == jia[0]) {
                                    return false;
                                } else {
                                    return false;
                                }
                            } else if (length > 2 && lengthLimit == 2) {
                                if (appraiseMoody[2] == jia[0]) {
                                    return true;
                                } else if (appraiseMoody[2] >= 64 && appraiseMoody[2] <= appraiseMoody[1]) {
                                    return true;
                                } else if (appraiseMoody[2] == jian[0]) {
                                    return false;
                                }
                            } else {
                                if (((appraiseMoody[2] == jia[0]) || (appraiseMoody[2] == jian[0])) &&
                                    ((appraiseLimit[2] == jia[0]) || (appraiseLimit[2] == jian[0]))) {
                                    result = shifouxiangt(appraiseMoody[2], appraiseLimit[2]);
                                } else {
                                    if (appraiseMoody[2] == appraiseLimit[2]) {
                                        if (length == 3 && lengthLimit == 3) {
                                            return true;
                                        } else if (length == 3 && lengthLimit > 3) {
                                            if (appraiseLimit[3] == jia[0]) {
                                                return false;
                                            } else {
                                                return false;
                                            }
                                        } else if (length > 3 && lengthLimit == 3) {
                                            if (appraiseMoody[3] == jia[0]) {
                                                return true;
                                            } else {
                                                return false;
                                            }
                                        } else {
                                            return shifouxiangt(appraiseMoody[3], appraiseLimit[3]);
                                        }
                                    } else if (appraiseMoody[2] < 64 && appraiseMoody[2] < appraiseLimit[2]) {
                                        return true;
                                    } else if (appraiseMoody[2] < 64 && appraiseLimit[1] < appraiseLimit[2]) {
                                        return true;
                                    } else if (appraiseMoody[2] < appraiseLimit[2]) {
                                        return true;
                                    } else {
                                        return false;
                                    }
                                }
                            }
                        } else if (appraiseMoody[1] < appraiseLimit[1]) {
                            return true;
                        } else {
                            return false;
                        }
                    }
                }
            } else if (appraiseMoody[0] < appraiseLimit[0]) {
                return true;
            } else {
                return false;
            }
        }
        return result;
    }

    public static char[] splitString(String str) {
        return str.toCharArray();
    }

    public static boolean shifouxiangt(int a, int b) {
        char[] jia = "+".toCharArray();
        char[] jian = "-".toCharArray();
        boolean result = false;
        if ((a == jia[0] && b == jia[0]) || (a == jian[0] && b == jian[0])) {
            result = true;
        } else if ((a == jia[0] && b == jian[0]) || (a == jia[0] && b != jian[0])) {
            result = true;
        } else {
            result = false;
        }
        return result;
    }
}