java - 如何从java方法返回多个字符串值

Question

这个问题已经有答案了:

How to return multiple objects from a Java method? (25 个回答)

How to return multiple values? [duplicate] (3 个回答)

已关闭 3 年前。

我无法同时返回用户名和通行证 String同时值。

    public static String executeLogin(String username, String pass) {
        int totalAttempts = 5;

        if (totalAttempts != 0) {
            if (username == "Javaprogram" && (pass == "Legend1@")) {
                System.out.println("Correct");
            } else {
                System.out.println("Incorrect Login");
                totalAttempts--;
            }
            if (totalAttempts == 0) {
                System.out.println("Maximum number of attempts exceeded");  
            }

        }
        return "username,pass";                 
    }

Answer 1

注意:您应该将“总尝试次数”变量放在函数范围之外!

您可以返回字符串列表:

static int totalAttempts = 5;

public static String[] executeLogin(String username, String pass) {

    if (totalAttempts != 0) {
        if (username == "Javaprogram" && (pass == "Legend1@")) {
            System.out.println("Correct");
        } else {
            System.out.println("Incorrect Login");
            totalAttempts--;
        }
        if (totalAttempts == 0) {
            System.out.println("Maximum number of attempts exceeded");
        }

    }

    return new String[]{username, pass};
}