src/main/java/com/zandero/utils/StringUtils.java
public static String join(Object[] args, String separator) {

		return join(args, separator, null);
	}
public static String join(Object[] args, String separator) {

		return join(args, separator, null);
	}
Joins array of objects into string, where items are separated
with a defined separator.

@param args      array of Object
@param separator to be used between elements
@return items joined into a single string