Reference Types in Java

Lessons in this section

1. Arrays

   Store many values in one array, read and update elements, loop with for and for-each, build 2D and jagged arrays, and sort, search, fill and copy with the Arrays class.

2. Strings

   Work with Java text: immutability, the String Pool, literals and text blocks, formatting, common String methods, comparing strings, and building text with StringBuilder and StringBuffer.

3. DateTime

   Handle dates and times with LocalDate, LocalTime, LocalDateTime and ZonedDateTime, format and parse them, do date arithmetic, and measure gaps with Duration and Period.