Help with validating input into an array

[kcoltharp]

I am writing code to get user input, verify input is between 10 and 100, then save int into array.

Everything seems to go ok until a number is less than 10 or more than 100. The original user input number is put into the array.

Is there a way to either rewrite over that index without prior knowledge of the index or prevent it from being input into the array before validating the input.

Here is what I have so far.

int i = 0; //initialize local variable
Scanner input = new Scanner( System.in );
int num[] = new int[10];

for ( int counter = 0; counter < num.length; counter++)
{
System.out.printf("\n\nEnter a number between 10 to 100: ");
num[i] = input.nextInt();
System.out.printf("Counter is at: %d ", counter);

while (num[i] < 10 || num[i] > 100)
{
counter--;
System.out.printf("\nINVALID NUMBER!\n\nEnter a number between "
+ "10 to 100: ");
num[i] = input.nextInt();
}//end while

}//end for loop

Any help would be appreciative.

[m00nchile]

This would be an easier way of doing what you're trying to do, it's simple enough to just write it out, as the program flow of such problems can be a bit hard to understand:

public class InputCheckEx {
  public static void main(String[] args) {
    int[] array = new int[10];
    Scanner sc = new Scanner(System.in);
    for(int i = 0; i < array.length; i++) {
      int input = sc.nextInt();
      if(input < 10 || input > 100) {
        System.out.println("Input must be between 10 and 100 inclusive.");
        i--;
      }
      else array[i] = input;
    }
    for(int i: array) System.out.print(i+" ");
  }
}