JShell is a REPL (Read-Eval-Print-Loop) interactive tool introduced in Java 9 that takes input, evaluates it, and returns output to a user.
java.util.LocalDate class provides a number of methods to retrieve Date information: Day/Month/Year and related attributes Date meta-information: Classification-related information such as whether a leap year, etc. LocalDate class is immutable, and we can use different methods provided to add and subtract days, months, and years. Each of these returns a new instance of LocalDate.
In the below two code snippets, we can able to print different operations using LocalDate class.
Snippet-1
jshell> import java.time.*; jshell> LocalDate today = LocalDate.now() today ==> 2020-04-22 jshell> today.getYear() $3 ==> 2020 jshell> today.getDayOfWeek() $4 ==> WEDNESDAY jshell> today.getDayOfMonth() $5 ==> 22 jshell> today.getDayOfYear() $6 ==> 113 jshell> today.getMonth() $7 ==> APRIL jshell> today.getMonthValue() $8 ==> 4 jshell> today.isLeapYear() $9 ==> true jshell> today.lengthOfYear() $10 ==> 366 jshell> today.lengthOfMonth() $11 ==> 30
Snippet-2
jshell> today.plusDays(50) $12 ==> 2020-06-11 jshell> today.plusMonths(50) $13 ==> 2024-06-22 jshell> today.plusYears(50) $14 ==> 2070-04-22 jshell> today.minusYears(50) $15 ==> 1970-04-22 jshell> LocalDate yesterYear = today.minusYears(50) yesterYear ==> 1970-04-22 jshell> today today ==> 2020-04-22