When typing incorrectly sequentially, the loop breaks java
When you enter a random value such as "i" twice in a row, the program ends. I would like to see "Invalid data, please try again" and then "Do you want to play again", keep repeating until neither N nor Y is entered.
7 8 5
No numbers match
Do you want to play again?
i
Invalid data please try again
Do you want to play again?
i
Thank you for using this program
It should be:
7 8 5
No numbers match
Do you want to play again?
i
Invalid data please try again
Do you want to play again?
i
Invalid data please try again
Do you want to play again?
... etc.
Code:
import java.util.Random;
import java.util.Scanner;
public class TestSlotMachine {
public static void main(String[] args) {
String choice;
Scanner keyboardScanner = new Scanner(System.in);
do {
Random randomNumber = new Random();
int slot1, slot2, slot3;
slot1 = randomNumber.nextInt(9);
slot2 = randomNumber.nextInt(9);
slot3 = randomNumber.nextInt(9);
System.out.println(slot1+" "+slot2+" "+ slot3);
if (slot1 != slot2 && slot1 != slot3 && slot2 != slot3) {
System.out.println("No numbers match");
}
else if (slot1 == slot2 && slot2 == slot3) {
System.out.println("Three numbers match");
}
else {
System.out.println("Two numbers match");
}
System.out.println("Do you want to play again?");
choice = keyboardScanner.next();
if (!choice.equalsIgnoreCase("n") && !choice.equalsIgnoreCase("y")) {
System.out.println("Invalid data please try again");
System.out.println("Do you want to play again?");
choice = keyboardScanner.next();
}
} while (choice.equalsIgnoreCase("y"));
System.out.println("Thank you for using this program");
keyboardScanner.close();
}
}
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