重新提示对话框输入,直到符合猜数--Java
我一直试图提示相同的输入对话框,直到用户猜测正确的数字,但我不确定如何,任何帮助将不胜感激!我非常确定如何实现While循环,但我不知道具体如何实现。用户输入是解析为int以进行计算的字符串
JOptionPane.showMessageDialog(null, "
Welcome to Guess- My-Number
A GAME of CHANCE and SKILL
Let's Play!
");
// input number
String myGuess = JOptionPane.showInputDialog("Enter a number between 1 and 25:");
int myGuess_int = Integer.parseInt(myGuess);
final int NUMBER_TO_GUESS = 13;
//good or bad guess??
while(myGuess_int != NUMBER_TO_GUESS)
{
if(myGuess_int < NUMBER_TO_GUESS) //too low
{
String message = String.format("Your guess [ %s ] is too low...
Try Again!
", myGuess);
JOptionPane.showMessageDialog(null, message);
}
else //too high
{
String message = String.format("Your guess [ %s ] is too high...
Try Again!
", myGuess);
JOptionPane.showMessageDialog(null, message);
}
JOptionPane.showInputDialog("Enter a number between 1 and 25:");
myGuess_int = Integer.parseInt(myGuess);
}//end while
String message = String.format("Your guess [ %s ] is the number...
Congratulations!
", myGuess);
JOptionPane.showMessageDialog(null, message);
} //end main
} //end class
解决方案
尝试使用do-while loop!
JOptionPane.showMessageDialog(null, "
Welcome to Guess- My-Number
A GAME of CHANCE and SKILL
Let's Play!
");
final int NUMBER_TO_GUESS = 13;
//good or bad guess??
String myGuess;
int myGuess_int;
do{
// input number
myGuess = JOptionPane.showInputDialog("Enter a number between 1 and 25:");
myGuess_int = Integer.parseInt(myGuess);
if(myGuess_int < NUMBER_TO_GUESS) //too low
{
String message = String.format("Your guess [ %s ] is too low...
Try Again!
", myGuess);
JOptionPane.showMessageDialog(null, message);
}
else //too high
{
String message = String.format("Your guess [ %s ] is too high...
Try Again!
", myGuess);
JOptionPane.showMessageDialog(null, message);
}
JOptionPane.showInputDialog("Enter a number between 1 and 25:");
myGuess_int = Integer.parseInt(myGuess);
}while(myGuess_int != NUMBER_TO_GUESS);//end while
String message = String.format("Your guess [ %s ] is the number...
Congratulations!
", myGuess);
JOptionPane.showMessageDialog(null, message);
} //end main
} //end class
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