public static String serializeInt(Integer[] integers) {
        if (integers == null) {
            return "";
        }
        return Arrays.stream(integers)
                .map(i -> Integer.toString(i)).collect(Collectors.joining(","));
    }
public static String serializeInt(Integer[] integers) {
        if (integers == null) {
            return "";
        }
        return Arrays.stream(integers)
                .map(i -> Integer.toString(i)).collect(Collectors.joining(","));
    }
public static String serializeInt ( Integer [ ] integers ) { if ( integers == null ) { return "" ; } return Arrays . stream ( integers ) . map ( i -> Integer . toString ( i ) ) . collect ( Collectors . joining ( "," ) ) ; }
Serialize Integer array to comma separated string.
@return An empty string when the Integer array parameter is empty or null.
Serialize Integer array to comma separated string .