重新提示对话框输入,直到遇到猜数 -java
Re-prompt Dialog input until guessing number is met -java
我一直在尝试提示相同的输入对话框,直到用户猜出正确的数字,但我不确定如何,任何帮助将不胜感激!我很确定是如何实现 while 循环,但我不知道具体如何实现。用户输入是一个字符串,解析为 int 用于计算
JOptionPane.showMessageDialog(null, "\nWelcome to Guess- My-Number\nA GAME of CHANCE and SKILL\nLet's Play!\n\n");
// 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...\nTry Again!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
}
else //too high
{
String message = String.format("Your guess [ %s ] is too high...\nTry Again!\n", 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...\nCongratulations!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
} //end main
} //end class
您可以在条件中使用 do while 循环,
场景如下:
do {
// accept prompt from user
// display error message using if else statement
} while (myGuess_int != NUMBER_TO_GUESS); // loop again if input not match
尝试使用 do-while loop!
JOptionPane.showMessageDialog(null, "\nWelcome to Guess- My-Number\nA GAME of CHANCE and SKILL\nLet's Play!\n\n");
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...\nTry Again!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
}
else //too high
{
String message = String.format("Your guess [ %s ] is too high...\nTry Again!\n", 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...\nCongratulations!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
} //end main
} //end class
我一直在尝试提示相同的输入对话框,直到用户猜出正确的数字,但我不确定如何,任何帮助将不胜感激!我很确定是如何实现 while 循环,但我不知道具体如何实现。用户输入是一个字符串,解析为 int 用于计算
JOptionPane.showMessageDialog(null, "\nWelcome to Guess- My-Number\nA GAME of CHANCE and SKILL\nLet's Play!\n\n");
// 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...\nTry Again!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
}
else //too high
{
String message = String.format("Your guess [ %s ] is too high...\nTry Again!\n", 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...\nCongratulations!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
} //end main
} //end class
您可以在条件中使用 do while 循环,
场景如下:
do {
// accept prompt from user
// display error message using if else statement
} while (myGuess_int != NUMBER_TO_GUESS); // loop again if input not match
尝试使用 do-while loop!
JOptionPane.showMessageDialog(null, "\nWelcome to Guess- My-Number\nA GAME of CHANCE and SKILL\nLet's Play!\n\n");
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...\nTry Again!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
}
else //too high
{
String message = String.format("Your guess [ %s ] is too high...\nTry Again!\n", 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...\nCongratulations!\n", myGuess);
JOptionPane.showMessageDialog(null, message);
} //end main
} //end class