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我以前问过这个问题，但我认为，因为我只包含在代码片段中，所以不清楚。我正在编写一个程序，询问用户他们想问什么样的问题，然后提示他们回答这个问题。但是，即使来自用户的正确输入也会导致返回错误的答案。下面的代码：多字字符串输入和布尔值
import java.util.Scanner;
public class MascotQuiz {
public static void main(String[] args) {
int score = 0;
String greeting = "In this game, I ask you four questions about mascots for "
+ "US collegiate sports teams."
+ "\nYou get 1 point for each correct answer, "
+ "0 points if you type don't know, "
+ "and you lose a point for wrong answers.";
final String schoolOptions = "University of Michigan, "
+ "University of Nebraska, " + "University of Oklahoma, "
+ "University of Wisconsin";
final String mascotOptions = "Badgers, Cornhuskers, Sooners, Wolverines";
String prompt1 = "\nType 1 and I'll give you the mascot and "
+ "you give give the school. \n"
+ "Type 2 and I'll give you the school and "
+ "you give me the mascot. \n" + "Type 3 and I'll quit.";
System.out.println(greeting);
int questionCount = 1;
String mascotQuestion1, mascotQuestion2, mascotQuestion3, mascotQuestion4;
String schoolQuestion1, schoolQuestion2, schoolQuestion3, schoolQuestion4;
do {
System.out.println(prompt1);
int optionChoice;
Scanner scan = new Scanner(System.in);
optionChoice = scan.nextInt();
if (optionChoice == 1) {
if (questionCount == 1) {
System.out.println("What school do the Badgers belong to?");
mascotQuestion1 = scan.nextLine();
if (mascotQuestion1.equalsIgnoreCase("University of Michigan")) {
score++;
}
else if (mascotQuestion1.equalsIgnoreCase("don't know")) {
score = (score + 0);
}
else {
score--;
}
}
else if (questionCount == 2) {
System.out.println("What school do the Cornhuskers belong to?");
mascotQuestion2 = scan.next();
if (mascotQuestion2.equalsIgnoreCase("University of Nebrasksa")) {
score++;
}
else if (mascotQuestion2.equalsIgnoreCase("don't know")) {
score = (score + 0);
}
else {
score--;
}
}
else if (questionCount == 3) {
System.out.println("What school do the Sooners belong to?");
mascotQuestion3 = scan.next();
if (mascotQuestion3.equalsIgnoreCase("University of Oklahoma")) {
score++;
}
else if (mascotQuestion3.equalsIgnoreCase("don't know")) {
score = (score + 0);
}
else {
score--;
}
}
else {
System.out.println("What school do the Wolverines belong to?");
mascotQuestion4 = scan.next();
if (mascotQuestion4.equalsIgnoreCase("University of Winsconsin")) {
score++;
}
else if (mascotQuestion4.equalsIgnoreCase("don't know")) {
score = (score + 0);
}
else {
score--;
}
}
}
else if (optionChoice == 2) {
if (questionCount == 1) {
System.out.println("What mascot belongs to the University of Michigan?");
schoolQuestion1 = scan.next();
if (schoolQuestion1.equalsIgnoreCase("Badgers")){
score++;
}
else if (schoolQuestion1.equalsIgnoreCase("don't know")){
score = score + 0;
}
else {
score --;
}
}
else if (questionCount == 2) {
System.out.println("What mascot belongs to the University of Nebraska?");
schoolQuestion2 = scan.next();
if (schoolQuestion2.equalsIgnoreCase("Cornhuskers")){
score++;
}
else if (schoolQuestion2.equalsIgnoreCase("don't know")){
score = score + 0;
}
else {
score --;
}
}
else if (questionCount == 3) {
System.out.println("What mascot belongs to the University of Oklahoma?");
schoolQuestion3 = scan.next();
if (schoolQuestion3.equalsIgnoreCase("Sooners")){
score++;
}
else if (schoolQuestion3.equalsIgnoreCase("don't know")){
score = score + 0;
}
else {
score --;
}
}
else {
System.out.println("What mascot belongs to the University of Wisconsin?");
schoolQuestion4 = scan.next();
if (schoolQuestion4.equalsIgnoreCase("Wolverines")){
score++;
}
else if (schoolQuestion4.equalsIgnoreCase("don't know")){
score = score + 0;
}
else {
score --;
}
}
}
else {
questionCount = 5;
}
questionCount ++;
} while (questionCount <= 4);
System.out.println("\nBye. Your score is " + score);
}
}
你应该编辑你以前的问题，使其更清楚，并包括这个额外的代码。 – mdewitt 2014-10-01 00:56:16
可能重复的[字符串输入问题？]（http://stackoverflow.com/questions/26131721/string-input-problems） – mdewitt 2014-10-01 00:56:25
尽管我很愉快***赢***斯科辛，你已经（记住，威斯康星州是“罪恶牛罪恶”的一个字谜），而且你有獾和狼獾。另外，你应该考虑修正原来的*不清楚的问题，而不是问一个新的问题，特别是如果它最终是同一个问题。 – 2014-10-01 01:00:37