使用方法的java决策

Question

Task:

• Includes Decisions, and all constructs above.
• Defines and uses methods including one(s) that take an argument and return a result

Example: As above, but the program now has a series of possible template lines to go in the love letter in addition to the above and chooses which one to include at random. For example it might choose between a line of the form “You are my <noun>” and a line “I will forever think of you as my <noun>”. The person running the program inputs a noun when asked (eg “snugglebunny”) to complete the sentence (e.g., in this case it might then choose “You are my snugglebunny”). For each template, a separate method is defined that returns the full sentence given the word supplied as an argument.

这是我设法完成的代码，但是它显示错误“String[]无法转换为printmessage（ans1，input）的String”。我不知道我在这个问题上哪里出了问题，如果有人能帮忙，我会很高兴的

public static void decisions()
    {
        String input; 
        String phrase = "";

        input = askquestion ();  // defining the method for asking user the question to input a noun word.

        String [] ans1 = {"You remind me of my","I always think of you as my","I wish You could always be my","you are my one and only"};   // this will randomly select one phrase out of 4 given

        int rand = (int) (Math.random() * 4);  //this will do a random math calculation and select one phrase

        switch (rand)
                {
                case 0:
                printmessage(ans1, input);
                break;

                case 1:
                printmessage(ans1, input);
                break;

                case 2:
                printmessage(ans1, input);
                break;

                case 3:
                printmessage(ans1, input);
                break;
                }   

         // this defines the method for printing the message, taking the argument strings inside the bracket to the message defined later on.

    } // END decisions


    public static String askquestion ()

    {
        String result = "";

        result = JOptionPane.showInputDialog("Enter a noun word to describe your partner"); //asks users input

        return result;
    }

    public static void printmessage (String ans1, String input) // this will receive the argument from the method defined above and then be printed below as shown. The argument have been declared as x and y.

    {
        JOptionPane.showInputDialog( ans1 + input ); //this will combine the two variables and execute the message.

    }

Answer 1

String[]是字符串数组printmessage需要单个字符串，而不是它们的数组。给它一根绳子

aka，在switch语句中传入rand参数，顺便说一下，这是多余的，因为您调用的是相同的方法

switch (rand) {
    case 0:
    printmessage(ans1[rand], input);
    break;

    case 1:
    printmessage(ans1[rand], input);
    break;

    case 2:
    printmessage(ans1[rand], input);
    break;

    case 3:
    printmessage(ans1[rand], input);
    break;
}  

可以简单地变成

printmessage(ans1[rand], input);