在给出正确答案之前,是否要求回答?Java Eclipse
我基本上是在玩eclipse,以保留我在Java入门课程中学到的东西。我即将注册高级编程,我有一个初学者的问题
我在下面创建了这个小程序,因为我很难理解这些方法。现在我有了一般的概念,我有一个新的问题。我在下面有一个do-while语句,如果您输入简单加法问题的正确答案,它就会起作用。如果您输入了错误的答案,它将要求您再次尝试该问题(如我所愿)。如果您再次输入错误答案,程序将停止。我希望它能提示用户输入答案,直到答案正确为止。我该怎么做
import java.util.Scanner; //needed for input
public class PracticeMethod {
public static void main(String[] args) {
// Create a Scanner
System.out.println(");
System.out.println();
makesPerfect();
String anotherRun = "yes";
Scanner input = new Scanner(System.in);
}
static void makesPerfect() {
Scanner input = new Scanner(System.in);
String anotherRun;
do {
System.out.print(" Math");
int x = (int) (Math.random() * 10) + 1;
int y = (int) (Math.random() * 10) + 1;
System.out.print(" What is " + x + "+" + y + "? ");
double answer = 0.0;
answer = input.nextDouble();
if (answer == x + y) {
System.out.println(" Yes, you are correct.");
}
if (answer != x + y) {
System.out.print(" No, that is not correct. ");
System.out.println();
System.out.print(" Why dont you try again? ");
System.out.println();
System.out.println();
System.out.print(" What is " + x + "+" + y + "? ");
answer = input.nextDouble();
}
System.out.println();
System.out.print("Enter yes if you want to run again: ");
anotherRun = input.next();
input.nextLine(); // causes skipping issue to fix
System.out.print("\n\n\n");
} while (anotherRun.equalsIgnoreCase("yes"));
}
}
# 1 楼答案
用
if
语句检查答案是否正确。这样你就会一直问正确答案,直到你得到它也为正确使用StackOverflow和努力学习而感到自豪!也许有一天你会为我回答问题