import com.utilities.collection.*; import com.utilities.collection.StringUtils; import com.utilities.collection.StringUtils; public class Main { public static void main(String[] args) { String str = "Hello, World!"; String camelCaseStr = StringUtils.toCamelCase(str); System.out.println(camelCaseStr); } } import com.utilities.collection.ArrayUtils; public class Main { public static void main(String[] args) { int[] numbers = {1, 2, 3, 4, 5}; int sum = ArrayUtils.sum(numbers); System.out.println(sum); } }