public class GenericMethod {
    public static <K, R, V> boolean compare(Pack<K, R> p1, Pack<K, V> p2) {
        return p1.getKey().equals(p2.getKey()) && p1.getValue().equals(p2.getValue());
    }

    public static void main(String[] args) {
        Pack<Integer, String> p1 = new Pack<>(1, "pack");
        Pack<Integer, String> p2 = new Pack<>(2, "abc");
        Pack<Integer, String> p3 = new Pack<>(1, "pack");
        
        System.out.println("p1 & p2 are same?: " + compare(p1, p2));
        System.out.println("p1 & p3 are same?: " + compare(p1, p3));
    }
}

class Pack<K, V> {
    private K key;
    private V value;

    public Pack(K key, V value) {
        this.key = key;
        this.value = value;
    }

    public K getKey() {
        return this.key;
    }

    public V getValue() {
        return this.value;
    }
}