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73 lines
2.6 KiB
73 lines
2.6 KiB
1 year ago
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## DifferenceBetweenDate
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### Instructions
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Create a file `DifferenceBetweenDate.java`.
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Write a function `durationBetweenTime` that returns the duration between the times as parameter. Must always be positive.
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Write a function `periodBetweenDate` that returns the period between the dates as parameter.Must always be positive.
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Write a function `numberOfHoursBetweenDateTime` that returns the number of hours between the date times as parameter. Must always be positive.
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### Expected Functions
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```java
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import java.time.Duration;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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import java.time.Period;
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public class DifferenceBetweenDate {
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public static Duration durationBetweenTime(LocalTime localTime1, LocalTime localTime2) {
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// your code here
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}
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public static Period periodBetweenDate(LocalDate date1, LocalDate date2) {
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// your code here
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}
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public static Long numberOfHoursBetweenDateTime(LocalDateTime dateTime1, LocalDateTime dateTime2) {
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// your code here
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}
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}
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```
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### Usage
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Here is a possible ExerciseRunner.java to test your function :
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```java
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.time.LocalTime;
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public class ExerciseRunner {
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public static void main(String[] args) {
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Duration duration = DifferenceBetweenDate.durationBetweenTime(LocalTime.of(12, 54, 32), LocalTime.of(21, 23, 53));
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System.out.println(duration.toHoursPart() + "H" + duration.toMinutesPart() + "M" + duration.toSecondsPart() + "S");
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Period period = DifferenceBetweenDate.periodBetweenDate(LocalDate.of(2020, 10, 13), LocalDate.of(2022, 5, 8));
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System.out.println(period.getYears() + "Y" + period.getMonths() + "M" + period.getDays() + "D");
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System.out.println(DifferenceBetweenDate.numberOfHoursBetweenDateTime(LocalDateTime.of(2022, 4, 12, 16, 18, 56), LocalDateTime.of(2022, 5, 10, 21, 54, 56)));
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}
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}
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```
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and its output :
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```shell
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$ javac *.java -d build
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$ java -cp build ExerciseRunner
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8H29M21S
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1Y6M25D
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677
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$
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```
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### Notions
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[LocalDate](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/time/LocalDate.html)
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[LocalTime](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/time/LocalTime.html)
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[LocalDateTime](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/time/LocalDateTime.html)
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[DateTimeFormatter](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/time/format/DateTimeFormatter.html)
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[Locale](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/Locale.html)
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