It says here that length = 1 and index = 1 and im getting an error at line 28 but i started the array with 0

Question

It says here that length = 1 and index = 1 and im getting an error at line 28 but i started the array with 0. Link

public class Questions {
    public String mQuestions[] = {
            "1 + 1",
            "2 + 2",
            "4 + 4",
            "3 + 3",
    };
    private String mChoices[][] = {
            {"324, 231, 2"},
            {"456, 4, 2461"},
            {"8, 72, 45"},
            {"34, 6, 531"}
    };
    private String mCorrectAnswers[] = {
            "2,", "4,", "8", "6",
    };
    public String getQuestion(int a){
        String question = mQuestions[a];
        return question;
    }
    public String getChoice1(int a){
        String choice = mChoices[a][0];
        return choice;
    }
    public String getChoice2(int a){
        String choice = mChoices[a][1];
        return choice;
    }
    public String getChoice3(int a){
        String choice = mChoices[a][2];
        return choice;
    }
    public String getCorrectAnswer(int a){
        String answer = mCorrectAnswers[a];
        return answer;
    }
}

Where's your `main` method? – xxMrPHDxx Mar 08 '20 at 05:21 — xxMrPHDxx, Mar 08 '20 at 05:21
Which one is line 28? – EJoshuaS - Stand with Ukraine Mar 08 '20 at 05:22 — EJoshuaS - Stand with Ukraine, Mar 08 '20 at 05:22

score 2 · Accepted Answer · answered Mar 08 '20 at 05:54

Correct the initialization for mChoices[][] as follows

private String mChoices[][] = {
    { "324", "231", "2" },
    { "456", "4", "2461" },
    { "8", "72", "45" },
    { "34", "6", "531" }};

Reason : {"324, 231, 2"} is a single string where { "324", "231", "2" } is three strings

score 1 · Answer 2 · answered Mar 08 '20 at 05:23

Your array declaration is incorrect. This

private String mChoices[][] = {
        { "324, 231, 2" },
        { "456, 4, 2461" },
        { "8, 72, 45" },
        { "34, 6, 531" }
};

should be

private String mChoices[][] = {
        { "324", "231", "2" },
        { "456", "4", "2461" },
        { "8", "72", "45" },
        { "34", "6", "531" }
};

As is, your array only has a single dimension with any values. Although, it might look a bit odd at first glance, you could also write it like

private String mChoices[][] = { 
        "324, 231, 2".split("\\s*,\\s*"),
        "456, 4, 2461".split("\\s*,\\s*"),
        "8, 72, 45".split("\\s*,\\s*"),
        "34, 6, 531".split("\\s*,\\s*") 
};

It says here that length = 1 and index = 1 and im getting an error at line 28 but i started the array with 0

2 Answers2