Pairs

Pairs.java

public class Pairs {
    public static void main(String[] args) {
        int[] cards = { 1, 2, 4, 1, 7 };
        
        boolean pair = false;
            
        for (int i=0; i<cards.length; i++) {
            for (int j=i+1; j<cards.length; j++) {
                if (cards[i] == cards[j]) {
                    pair = true;
                    break;
                }
            }
        }
        
        if (pair) {
            System.out.println("Pair");
        }
        else {
            System.out.println("No Pair");
        }
    }
}