Answers for "java how to check if the given from scanner is number"

1

scanner check if int

boolean isAnInt = scanner.hasNextInt();
Posted by: Guest on June-17-2020
0

java to check if its a number scanner

Scanner sc = new Scanner(System.in);
int number;
do {
    System.out.println("Please enter a positive number!");
    while (!sc.hasNextInt()) {
        System.out.println("That's not a number!");
        sc.next(); // this is important!
    }
    number = sc.nextInt();
} while (number <= 0);
System.out.println("Thank you! Got " + number);
Posted by: Guest on August-25-2020

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