所以我在学校有一门计算机科学类(class),我们在其中学习 Java。我们被分配做一个简单的基于文本的猜谜游戏。到目前为止我已经完成了,但我似乎无法找到我搞砸的地方,因为当我运行核心时没有打印任何内容。
这是代码:
public class GuessGame
{
public static void main(String[] args)
{
new GuessGame();
}
public GuessGame ()
{
char end = 'y';
while (end!='y')
{
System.out.println ("Welcome to the Guessing Game!");
System.out.println ("\nThe computer has picked a number");
System.out.println ("between 1 and 100. Try to guess it.");
int num = (int)(Math.random()*(100-1)+1);
int guess = IBIO.inputInt ("Guess the number: ");
if (guess==num)
System.out.println ("You got it!");
else if (guess>num)
System.out.println ("That is too high.");
else
System.out.println ("That is too low.");
end = IBIO.inputChar ("Exit game? (y/n)");
}
}
}
顺便说一下,IBIO 是我的 IB 程序提供的一个类,我们用它来制作输入/输出语句。
这是 IBIO.java:
public class IBIO
{
static void output (String info)
{
System.out.println (info);
}
static void output (char info)
{
System.out.println (info);
}
static void output (byte info)
{
System.out.println (info);
}
static void output (int info)
{
System.out.println (info);
}
static void output (long info)
{
System.out.println (info);
}
static void output (double info)
{
System.out.println (info);
}
static void output (boolean info)
{
System.out.println (info);
}
static String input (String prompt)
{
String inputLine = "";
System.out.print (prompt);
try
{
inputLine = (new java.io.BufferedReader (new java.io.InputStreamReader (System.in))).readLine ();
}
catch (Exception e)
{
String err = e.toString ();
System.out.println (err);
inputLine = "";
}
return inputLine;
}
static String inputString (String prompt)
{
return input (prompt);
}
static String input ()
{
return input ("");
}
static int inputInt ()
{
return inputInt ("");
}
static double inputDouble ()
{
return inputDouble ("");
}
static char inputChar (String prompt)
{
char result = (char) 0;
try
{
result = input (prompt).charAt (0);
}
catch (Exception e)
{
result = (char) 0;
}
return result;
}
static byte inputByte (String prompt)
{
byte result = 0;
try
{
result = Byte.valueOf (input (prompt).trim ()).byteValue ();
}
catch (Exception e)
{
result = 0;
}
return result;
}
static int inputInt (String prompt)
{
int result = 0;
try
{
result = Integer.valueOf (input (prompt).trim ()).intValue ();
}
catch (Exception e)
{
result = 0;
}
return result;
}
static long inputLong (String prompt)
{
long result = 0;
try
{
result = Long.valueOf (input (prompt).trim ()).longValue ();
}
catch (Exception e)
{
result = 0;
}
return result;
}
static double inputDouble (String prompt)
{
double result = 0;
try
{
result = Double.valueOf (input (prompt).trim ()).doubleValue ();
}
catch (Exception e)
{
result = 0;
}
return result;
}
static boolean inputBoolean (String prompt)
{
boolean result = false;
try
{
result = Boolean.valueOf (input (prompt).trim ()).booleanValue ();
}
catch (Exception e)
{
result = false;
}
return result;
}
}
很抱歉问了这么长的问题。我是 Java 新手。
最佳答案
计算机正在按照您的指示进行操作。当 GuessGame
的构造函数运行时:
将
end
声明为char
局部变量并将其初始化为包含'y'
:char end = 'y';
当
end
不包含'y'
时运行循环体:while (end!='y')
(因为
end
确实包含'y'
,所以它不运行循环体;它跳到循环后的代码)。
关于猜谜游戏的Java代码不打印任何内容,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29000103/