编译器一直说没有主要方法，但有一个方法：
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;
class StarWarsFinal
{
final static Map<String, String> 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");
}
final static Map<String, String> lastNameMap = new HashMap<>();
static {
lastNameMap.put("A", "tzki");
lastNameMap.put("B", "hut");
lastNameMap.put("C", "der");
lastNameMap.put("D", "kzos");
lastNameMap.put("E", "vos");
lastNameMap.put("F", "vader");
lastNameMap.put("G", "thrawn");
lastNameMap.put("H", "mesk");
lastNameMap.put("I", "thuo");
lastNameMap.put("J", "skywalker");
lastNameMap.put("K", "D2");
lastNameMap.put("L", "maul");
lastNameMap.put("M", "sith");
lastNameMap.put("N", "muzzar");
lastNameMap.put("O", "jusik");
lastNameMap.put("P", "horn");
lastNameMap.put("Q", "phisto");
lastNameMap.put("R", "farlander");
lastNameMap.put("S", "dunhaussan");
lastNameMap.put("T", "jar");
lastNameMap.put("U", "binks");
lastNameMap.put("V", "lbis");
lastNameMap.put("W", "gnarzlo");
lastNameMap.put("X", "anakin");
lastNameMap.put("Y", "ackbur");
lastNameMap.put("Z", "axmis");
}
final static Map<String, String> jobMap = new HashMap<>();
static{
jobMap.put("Jan","Clone");
jobMap.put("Feb","Bounty Hunter");
jobMap.put("Mar","Droid");
jobMap.put("Apr","Jedi Knight");
jobMap.put("May","Gungan");
jobMap.put("Jun","Gangster");
jobMap.put("Jul","commander");
jobMap.put("Aug","ewok");
jobMap.put("Sep","Queen");
jobMap.put("Oct","Empirer");
jobMap.put("Nov","Darth");
jobMap.put("Dec","captain");
}
public static void main ( String[] args )
{
String[] planet = null, rank = null, rebbelion = null, letter1 = null, letter2= null , Map , HashMap;
Scanner input = new Scanner( System.in ); //scanner initilized
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
System.out.println("Welcome to the Star Wars name generator");
System.out.println("What is your first name?"); //Name Generation
String firstName = input.nextLine();
String newFirst = firstNameMap.get(firstName.toUpperCase().substring(0,1)); //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])
String newLast = lastNameMap.get (lastName.toUpperCase().substring(0,1));
System.out.println("What is your Birth month(first 3 letters)?"); //Name Generation
String month = input.nextLine();
String job = jobMap.get(firstName.toUpperCase().substring(0,3));
System.out.println("If you had to choose 1)dark or 2)light side? please input the number"); //Selection of Dark or Light side
int side = input.nextInt();
//Selection of Dark or 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
String location =input.nextLine();
if (side == 1)
{
System.out.println("You Have chosen to be part of the dark side!");
System.out.println("You "+ newFirst + newLast +" now fight for the dark side As a proud "+ job +"of the"+ location +"Good luck against your enemy's and may the force be with you");
}
else
{
System.out.println("You are now part of the light side!");
System.out.println("You "+ newFirst + newLast +" now fight for the light side As a proud "+ job +"of the"+ location +"Good luck against your enemy's and may the force be with you");
}
System.out.println("Thank you for doing the starwars name generator!");
}
}
我不知道为什么它不会读它，因为它提前工作了。我使用NetBeans作为IDE。
答案 0 :(得分：0)
该计划没有任何问题。
我做了以下事情：
[steve@newbox tmp]$ cat > StarWarsFinal.java
<paste-program-from-question>
[steve@newbox tmp]$ javac StarWarsFinal.java
[steve@newbox tmp]$ java StarWarsFinal
Welcome to the Star Wars name generator
What is your first name?
^D
Exception in thread "main" java.util.NoSuchElementException: No line found
at java.util.Scanner.nextLine(Scanner.java:1585)
at StarWarsFinal.main(StarWarsFinal.java:112)
[steve@newbox tmp]$
由此我们必须得出结论，您遇到的问题是以下之一：
记录：
不必将类声明为public，因为它可以运行，至少在使用java命令从命令行运行时。
没有主要方法，这不是Java编译错误。这是一个运行时错误。如果您打算尝试运行它，则只有类需要 main方法。编译器无法知道你是否去这样做，所以它不能抱怨它。
"Hello World!" for the NetBeans IDE页面将指导您完成使用NetBeans编译和运行简单程序的步骤。也许这会给你一些关于你做错了什么的线索。