我剛剛開始學習java代碼，這就是為什么我有一個簡單的問題對我來說并不簡單。我想放一個可選的“錯誤號碼。重試“，當輸入的編號與 secretNum 不同時。你們可以幫我寫這個代碼嗎？我需要學習如何在數字為！=而不是猜測數字時放置“重試”。 /* I have tried * 1)Change the signal "==" or "!=". * 2) do { System.out.println("Guess what is the number 0 to 10: "); if (sc.hasNextInt()) { guess = sc.nextInt(); } } while(secretNum != guess);{ System.out.println("Well done"); System.out.println(); System.out.println("Are you ready for the next step?"); System.out.println(); } */import java.util.Scanner;public class GuessNumber { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("Enter name:"); if(sc.hasNextLine()) { String userName = sc.nextLine(); System.out.println("Hello " + userName + ","); System.out.println(); } int secretNum = 5; int secretNum2 = 15; int guess = 0; do { System.out.println("Guess what is the number 0 to 10: "); if (sc.hasNextInt()) { guess = sc.nextInt(); } } while(secretNum != guess);{ System.out.println("Well done\n"); System.out.println("Are you ready for the next step?\n"); } // I need learn how put "try again" when the number is != than guess number. /* I have tried * 1)Change the signal "==" or "!=". * 2) do { System.out.println("Guess what is the number 0 to 10: "); if (sc.hasNextInt()) { guess = sc.nextInt(); } } while(secretNum != guess);{ System.out.println("Well done"); System.out.println(); System.out.println("Are you ready for the next step?"); System.out.println(); } */ System.out.println("Enter Yes or No"); while(!sc.next().equals("yes")&& !sc.next().equals("no"));{ System.out.print("Yes");
1 回答
蝴蝶不菲
TA貢獻1810條經驗 獲得超4個贊
您不需要在這里執行要執行的檢查，只需循環就足夠了。do{} while()while(){}
請嘗試以下代碼：
import java.util.Scanner;
public class GuessNumber {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter name:");
if (sc.hasNextLine()) {
String userName = sc.nextLine();
System.out.println("Hello " + userName + ",");
System.out.println();
}
int secretNum = 5;
int secretNum2 = 15;
int guess = 0;
System.out.println("Guess what is the number 0 to 10: ");
if (sc.hasNextInt()) {
guess = sc.nextInt();
}
while (secretNum != guess) {
System.out.println("Please try again\n");
if (sc.hasNextInt()) {
guess = sc.nextInt();
}
}
System.out.println("Well done\n");
System.out.println("Are you ready for the next step?\n");
System.out.println("Enter Yes or No");
while (!sc.next().equals("yes") && !sc.next().equals("no"))
{
System.out.print("Yes");
}
System.out.println("Guess what is the number 11 to 20: ");
if (sc.hasNextInt()) {
guess = sc.nextInt();
}
while (secretNum2 != guess) {
System.out.println("Please try again\n");
if (sc.hasNextInt()) {
guess = sc.nextInt();
}
}
System.out.println("Congratulations");
System.out.println();
System.out.println("The End");
}
}
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