英文:
Compiler giving an "error: cannot find symbol" message. I think it has to do with the methods
问题
import java.util.Random;
public class GuessingGame {
public static void newGame(int answer) {
Random rand = new Random(answer);
answer = rand.nextInt(51);
}
public static void main(String[] args) {
int answer = 0;
newGame(answer);
}
}
英文:
I'm trying to have the main method call the newGame method but it's giving me an error.
error: cannot find symbol
newGame(answer);
symbol: variable answer
location: class GuessingGame
import java.util.Random;
public class GuessingGame {
public static newGame(int answer){
Random rand = new Random(int answer);
answer = rand.nextInt(51);
}
public static void main (String [] args ){
newGame(answer);
}
}
答案1
得分: 0
你发布的代码缺少一些部分，而且功能有限。我假设你想从 newGame 返回新的随机值（因此应该返回一个 int）。另外，最好将 Random 传递给你的方法（因为创建新的 Random 包括对其进行种子化，如果你在循环中迅速执行，可能会选择相同的种子）。因此，可能如下所示：
public static int newGame(Random rand) {
return rand.nextInt(51);
}
然后你需要在 main 函数中保存 answer，并构造 Random。像这样：
public static void main(String[] args) {
Random rand = new Random();
int answer = newGame(rand);
}
英文:
Your posted code is missing a few things, and doesn't do much. I assume you want to return the new random value from newGame (and thus it should return an int). Also, it's better to pass the Random to your method (because creating a new Random involves seeding it, and if you do it quickly in a loop you can pick the same seed). So, that might look like
public static int newGame(Random rand) {
return rand.nextInt(51);
}
Then you need to save the answer in main. And construct the Random. Like,
public static void main(String[] args) {
Random rand = new Random();
int answer = newGame(rand);
}
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