我对此很新,并且想知道是否有人可以帮助我。 我希望代码能够在回答某些问题后停止提问。我得到它的第一个像鹦鹉和鸸的工作,但我似乎无法添加其他人。请告诉我我做错了什么。
目前的代码是:
import java.util.Scanner;
/**
* Guessing Game.
*
* @author O
* @version 99
*/
public class Quiz
{
public static void main(String[] args)
{
Scanner keyboard = new Scanner(System.in);
boolean answerIsCorrect;
System.out.println("Think of an animal.\n");
if(ask("Is it a bird? ", keyboard))
{
if(ask("Can it fly? ", keyboard))
{
answerIsCorrect = ask("Is it a parrot? ", keyboard);
}
else
{
answerIsCorrect = ask("Is it an emu? ", keyboard);
}
{
if(ask("Does it live in the ocean? ", keyboard))
{
if(ask("Is it a whale? ", keyboard))
{
answerIsCorrect = ask("Answer 1? ", keyboard);
}
else
{
answerIsCorrect = ask("Answer 2? ", keyboard);
}
}
}
}
else
{
if(ask("Does it lay eggs? ", keyboard))
{
answerIsCorrect = ask("Is it a platypus? ", keyboard);
}
else
{
answerIsCorrect = ask("Is it a kangaroo? ", keyboard);
}
}
if(answerIsCorrect)
{
System.out.println("I am good!");
}
else
{
System.out.println("Drats! I guess I don't know then!");
}
}
/**
* A utility method to ask a yes/no question
*
* @param question the question to ask
* @param a scanner for user input
*
* @return whether the user answered "yes" (actually, whether the user answered
anything starting with Y or y)
*/
private static boolean ask(String question, Scanner keyboard)
{
System.out.print(question);
String answer = keyboard.nextLine().trim();
return answer.charAt(0) == 'Y' || answer.charAt(0) == 'y';
}
}
答案 0 :(得分:1)
你的代码中似乎有一对额外的括号(在最初的if语句之后。你可能想要删除它们。另外,你可能想要添加一个else if
。所以,像:< / p>
if(ask("Is it a bird? ", keyboard))
{
if(ask("Can it fly? ", keyboard))
{
answerIsCorrect = ask("Is it a parrot? ", keyboard);
}
else
{
answerIsCorrect = ask("Is it an emu? ", keyboard);
}
}
else if(ask("Does it live in the ocean? ", keyboard))
{
if(ask("Is it a whale? ", keyboard))
{
answerIsCorrect = ask("Answer 1? ", keyboard);
}
else
{
answerIsCorrect = ask("Answer 2? ", keyboard);
}
}
else
{
if(ask("Does it lay eggs? ", keyboard))
{
answerIsCorrect = ask("Is it a platypus? ", keyboard);
}
else
{
answerIsCorrect = ask("Is it a kangaroo? ", keyboard);
}
}
希望有所帮助。祝你好学习如何编程。