package edu.blastermind.model;
import java.util.Random;
/**
* A NumberGuessingGame represents the rules of a simple "guess the number" type game.
*
* @author
*
*/
public class GuessTheNumberGame {
private int highest;
private int secret;
/**
* Creates a new NumberGuessingGame with a secret number between 0 and highest.
*
* @param highest the highest possible number for this game. Must be > 0.
*/
public GuessTheNumberGame(int highest) {
// TODO 1: perform a precondition check on the parameter highest
if (highest <= 0) {
throw new IllegalArgumentException
("highest number must be at least 1");
}
this.highest = highest;
Random rng = new Random();
this.secret = rng.nextInt(highest + 1);
}
/**
* Checks to see if we've guessed correctly.
*
* @param guess our guess (must be between 0 and getHighest())
* @return true if the guess was correct, false otherwise
*/
public boolean isGuessCorrect(int guess) {
// TODO 2: perform a precondition check on the variable guess
if (guess > this.highest || guess < 0) {
throw new IllegalArgumentException
("Guess must be between 1 and 100");
}
return this.secret == guess;
}
/**
* Checks to see if our guess is higher than the secret.
*
* @param guess our guess (must be between 0 and getHighest())
* @return true if our guess is higher than the secret, false otherwise
*/
public boolean isGuessHigher(int guess) {
// TODO 3: perform a precondition check on the variable guess
if (guess > this.highest || guess < 0) {
throw new IllegalArgumentException
("Guess must be between 1 and 100");
}
return this.secret < guess;
}
/**
* Returns the highest value in the range of valid guesses.
*
* @return the highest value in the range of valid guesses
*/
public int getHighest() {
return this.highest;
}
}
package edu.blastermind.controllers;
import java.util.Scanner;
import edu.westga.blastermind.model.GuessTheNumberGame;
public class GuessTheNumber {
public static void main(String[] args) {
GuessTheNumberGame game = new GuessTheNumberGame(100);
int turns = 1;
Scanner kb = new Scanner(System.in);
System.out.println("Guess a nummber between 0 and 100");
int guess = kb.nextInt();
// TODO 4: loop as long as the guess is not correct
while (!game.isGuessCorrect(guess)) {
guess++;
if (game.isGuessHigher(guess)){
System.out.println("You guessed too high!");
turns++;
}
else if (!game.isGuessCorrect(guess)){
System.out.println("You guessed too low!");
}
int GuessTheNumber = kb.nextInt();
}
turns++;
// TODO 5: in the loop, check guesses and give hints
System.out.printf("You guessed the number in %d turns\n", turns);
}
}
大家好>我正在用Java编写一个猜密码程序,但遇到了一些问题。当我第一次运行该程序时,我一直认为我的猜测太高了,而在终止该程序并再次运行它之后,它说我的猜测太低了。在while循环中,假设猜测是错误的数字,我认为这是循环的,但是我显然做错了。任何帮助表示赞赏,在此先感谢。
最佳答案
修复您的主要方法。您错过了一些变量,增加了一个猜测。而且您一直在检查用户的第一个输入。
public static void main(String[] args) {
GuessTheNumberGame game = new GuessTheNumberGame(100);
int turns = 0;
Scanner kb = new Scanner(System.in);
// TODO 4: loop as long as the guess is not correct
while (true) {
System.out.println("Guess a nummber between 0 and 100");
int guess = kb.nextInt();
if (game.isGuessHigher(guess)) {
System.out.println("You guessed too high!");
} else if (!game.isGuessCorrect(guess)) {
System.out.println("You guessed too low!");
}
turns++;
if (game.isGuessCorrect(guess)) break;
}
// TODO 5: in the loop, check guesses and give hints
System.out.printf("You guessed the number in %d turns\n", turns);
}