Format LocalDateTime To String

// Sample output: 20180420-121341LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMdd-kkmmss"))

Check for format pattern

You can also used pre-defined DateTimeFormatter

• ISO_LOCAL_DATE_TIME: e.g. 2011-12-03T10:15:30.111222
• BASIC_ISO_DATE: e.g. 20111203
• ISO_LOCAL_DATE: e.g. 2011-12-03
• ISO_LOCAL_TIME: e.g. 10:15:30
• ISO_OFFSET_DATE_TIME: e.g. 2011-12-03T10:15:30+01:00
• RFC_1123_DATE_TIME: e.g. Tue, 3 Jun 2008 11:05:30 GMT

// Sample output: 2018-04-10T03:34:18.115LocalDateTime.now().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME)