java - 从输入的第一个字母调用字符串输入的输出

Question

我正在尝试制作一个程序，该程序将使用输入名称，然后根据名字和姓氏的第一个字母，所以如果名称是鲍勃·马利，它将采用 B 并从数组 letter1 中获取输出那么它也会获取 M 并从数组字母 2 中获取输出。

    import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
class Starwars

{
    static Map<String, String> firstNameMap;}firstNameMap = new HashMap<>();
    static {
        firstNameMap.put("A", "Cho");
    firstNameMap.put("B", "R2");
    firstNameMap.put("C", "C-3po");
    firstNameMap.put("D", "Yod");
    firstNameMap.put("E", "Nas");
    firstNameMap.put("F", "Slea");
    firstNameMap.put("G", "Jan");
    firstNameMap.put("H", "Zhur");
    firstNameMap.put("I", "Boba");
    firstNameMap.put("J", "Thre");
    firstNameMap.put("K", "Bib");
    firstNameMap.put("L", "Kit");
    firstNameMap.put("M", "Kyp");
    firstNameMap.put("N", "Gonk");
    firstNameMap.put("O", "Zlung");
    firstNameMap.put("P", "Adi");
    firstNameMap.put("Q", "Nat");
    firstNameMap.put("R", "Ru");
    firstNameMap.put("S", "Cla");
    firstNameMap.put("T", "Kir");
        firstNameMap.put("U", "Obi");
    firstNameMap.put("V", "Ken");
    firstNameMap.put("W", "Ziro");
    firstNameMap.put("X", "Zev");
    firstNameMap.put("Y", "Tavion");
    firstNameMap.put("Z", "Jar");

  public static void main ( String[] args )
  {
      String[] planet = null, rank = null, rebbelion = null, letter1 = null, letter2= null , Map , HashMap;
      String firstName, lastName ,name2 , side , location, fistNameMap;

     Scanner input = new Scanner( System.in ); //scanner initilized


    }

   /*  letter1 = new String[25];//Name generation array uses first letter of first name
    letter1 [0] = "Cho";
    letter1 [1] = "R2";
    letter1 [2] = "C-3po";
    letter1 [3] = "Yod";
    letter1 [4] = "Nas";
    letter1 [5] = "Slea";
    letter1 [6] = "Jan";
    letter1 [7] = "Zhur";
    letter1 [8] = "Boba";
    letter1 [9] = "Thre";
    letter1 [10] = "Bib";
    letter1 [11] = "Kit";
    letter1 [12] = "Kyp";
    letter1 [13] = "Gonk";
    letter1 [14] = "Zlung";
    letter1 [15] = "Adi";
    letter1 [16] = "Nat";
    letter1 [17] = "Ru";
    letter1 [18] = "Cla";
    letter1 [19] = "Kir";
    letter1 [20] = "Obi";
    letter1 [21] = "Ken";
    letter1 [22] = "Ziro";
    letter1 [23] = "Tion";
    letter1 [24] = "Zev";
    letter1 [25] = "Jar";
    letter1 [26] = "Tavion";


    letter2 = new String[27];//Name generation array2 uses first letter of the last name
    letter2 [0] = "tzki";
    letter2 [1] = "hut";
    letter2 [2] = "der";
    letter2 [3] = "kzos";
    letter2 [4] = "vos";
    letter2 [5] = "vader";
    letter2 [6] = "thrawn";
    letter2 [7] = "mesk";
    letter2 [8] = "thuo";
    letter2 [9] = "skywalker";
    letter2 [10] = "D2";
    letter2 [11] = "maul";
    letter2 [12] = "sith";
    letter2 [13] = "muzzar";
    letter2 [14] = "jusik";
    letter2 [15] = "horn";
    letter2 [16] = "phisto";
    letter2 [17] = "farlander";
    letter2 [18] = "dunhaussan";
    letter2 [19] = "jar";
    letter2 [20] = "binks";
    letter2 [21] = "lbis";
    letter2 [22] = "gnarzlo";
    letter2 [23] = "anakin";
    letter2 [24] = "ackbur";
    letter2 [25] = "axmis";
    letter2 [26] = "bacca";



    planet = new String[11]; //Planet options  

    planet[0] = "Alderaan";
    planet[1] = "Bespin";
    planet[2] = "Coruscant";
    planet[3]= "Forest moon of Endor";
    planet[4] = "Hoth";
    planet[5] = "Kamino";
    planet[6] = "Kashyyk";
    planet[7] = "Mustafar";
    planet[8] = "Yavin";
    planet[9] = "DEATH STAR";//Planet options  -END

    rank = new String[50]; //Diferent jobs or prefixes to the name
    rank[0] = "Clone";
    rank[1] = "Bounty Hunter";
    rank[2] = "Droid";
    rank[3]= "Jedi Knight";
    rank[4] = "Gungan";
    rank[5] = "Gangster";
    rank[6] = "commander";
    rank[7] = "Queen";
    rank[9] = "Empirer";
    rank[10] = "Darth";
    rank[11] = "captain";
    rank[12] = "ewok";
    */
                System.out.println("Welcome to the Star Wars name generator");
        System.out.println("What is your first name?");     //Name Generation
        String firstName = input.nextLine();                //Name Generation (i want to take the first letter of there input and get the output from letter1 matching that # ie c = letter1 [2]  a= letter1 [0])
        System.out.println("What is your last name?");      //Name Generation
        String lastName = input.nextLine();                 //Name Generation (i want to take the first letter of there input and get the output from letter2 matching that # ie c = letter2 [2]  a= letter2 [0])


    /*
    System.out.println("If you had to choose dark or light side?"); //Selection of Dark or Light side
    side = input1.nextString();                                     //Selection of Dark or Light side

        if (side = dark);
        {
            System.out.println("You Have chosen to be part of the dark side!");

        }


        else
        {
            System.out.println("You are now part of the light side!");

        } 
        */

    System.out.println("There are now several places you could live please choose one of the following by number:");    //Planet selections
    System.out.println("1) Alderaan 2) Bespin 3) Coruscant 4) Forest moon of Endor 5) Hoth ");                          //Planet selections
    System.out.println("6) Kamino 7) Kashyyk 8) Mustafar 9) Yavin 10)DEATHSTAR");                                       //Planet selections
    location = input1.nestString();



    //Final print out Statements
    System.out.println("You "/*instert name1 and name2 */" now fight for the "/*side they choose */" As a proud "/* Job/creature */"of the"+ location +"Good luck against your enemy's and may the force be with you");

  }

我收到以下错误:

静态映射firstNameMap;firstNameMap = new HashMap<>(); - 找不到符号

firstNameMap.put("A", "Cho"); - 初始化期间静态非最终变量的使用

Answer 1

首先，我建议使用 HashMap ，将第一个字母映射到名称，而不是数组。然后，根据每个输入名称的第一个字符查找名称。它看起来像

public class Starwars {
    private static Map<String, String> firstNameMap = new HashMap<String, String>();
    static {
        firstNameMap.put("A", "Cho");
        // etc.
    }

    public static void main(String[] args){

        Scanner input = new Scanner(System.in);

        System.out.println("Welcome to the Star Wars name generator");
        System.out.println("What is your first name?");   
        String firstName = input.nextLine();
        String newName = firstNameMap.get(firstName.toUpperCase().substring(0,1));

        System.out.println("What is your last name?");
        String lastName = input.nextLine();
        // Do something similar
    }
}