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juanpabloprado/PeriodIsJShell.java

Created April 27, 2019 20:56
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Period is[state] methods on the Java Shell tool
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PeriodIsJShell.java
jshell> Period p1 = Period.parse("P10D").minusDays(10);
p1 ==> P0D
jshell> "Is zero: " + p1.isZero();
$24 ==> "Is zero: true"
jshell> // Period equals negative value
jshell> Period p2 = Period.parse("P2019M");
p2 ==> P2019M
jshell> p2 = p2.minusMonths(2020); // 2019-2020 is -1 Months
p2 ==> P-1M
jshell> "Is negative: " + p2.isNegative();
$27 ==> "Is negative: true"
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