问题描述
我对在 uni 学习 Java 基础知识非常陌生,我正在开展一个项目,为每个玩家返回 6 个随机骰子,但在最后一行“resultRoll = JOptionPane...”中遇到此错误任何帮助将不胜感激。
public class Dice {
public static void main(String[] args){
}
Dice () {
Component f = new JFrame();
Random rnd = new Random();
String resultRoll;
// values set 1 to 6
int n1 = 1 + rnd.nextInt(7-1);
int n2 = 1 + rnd.nextInt(7-1);
int n3 = 1 + rnd.nextInt(7-1);
int n4 = 1 + rnd.nextInt(7-1);
int n5 = 1 + rnd.nextInt(7-1);
int n6 = 1 + rnd.nextInt(7-1);
resultRoll = JOptionPane.showMessageDialog(f,"Yay! You rolled: " + n1 + n2 + n3 + n4 + n5 + n6);
}
}
解决方法
您可能想在显示消息之前设置 resultRoll
。
resultRoll = n1 + " " + n2 + " " + n3 + " " + n4 + " " + n5 + " " + n6;
JOptionPane.showMessageDialog(f,"Yay! You rolled: " + resultRoll);