Question

I have an array of strings:

void populateStringArray()
{
toppings = new String[20];

toppings[0] = "Cheese12";
toppings[1] = "Pepperoni1234";
toppings[2] = "Black Olives1";
// ...

And I want to return the one with least numeric characters.

Can some one suggest the logic to achieve this?

Answer 1

You can loop over characters and use Character.isDigit() to count digits in the string.

   String str = "Cheese12";
    int count = 0;
    for (int i = 0; i < str.length(); i++) {
        if (Character.isDigit(str.charAt(i))) {
            count++;
        }
    }
    System.out.println(count);

Output:

2