Examples of java.time.LocalDateTime.plus()

java.time.LocalDateTime.plus()

Returns a copy of this date-time with the specified amount added.

This returns a {@code LocalDateTime}, based on this one, with the specified amount added. The amount is typically {@link Period} or {@link Duration} but may beany other type implementing the {@link TemporalAmount} interface.

The calculation is delegated to the amount object by calling {@link TemporalAmount#addTo(Temporal)}. The amount implementation is free to implement the addition in any way it wishes, however it typically calls back to {@link #plus(long,TemporalUnit)}. Consult the documentation of the amount implementation to determine if it can be successfully added.

This instance is immutable and unaffected by this method call. @param amountToAdd the amount to add, not null @return a {@code LocalDateTime} based on this date-time with the addition made, not null @throws DateTimeException if the addition cannot be made @throws ArithmeticException if numeric overflow occurs

    // Test altering component fields using delta method plusXXX()
    LocalDateTime futureDateTime = localDateTime.plusWeeks(3);
    expectedDate = LocalDate.of(localDateTime.getYear(), Month.SEPTEMBER, 20);
    assertThat(futureDateTime, is(LocalDateTime.of(expectedDate, expectedTime)));
    // Test altering component fields using generic delta method plus(value, Unit)
    futureDateTime = futureDateTime.plus(1, ChronoUnit.WEEKS);
    expectedDate = LocalDate.of(localDateTime.getYear(), Month.SEPTEMBER, 27);
    assertThat(futureDateTime, is(LocalDateTime.of(expectedDate, expectedTime)));
  }


  /**

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