The plusHours() method of LocalTime class is used to add specified no of Hours value to this LocalTime and return the result as a LocalTime object. This instant is immutable. The calculation wraps around midnight.
Syntax:
public LocalTime plusHours(long hoursToAdd)
Parameters: This method accepts a single parameter hoursToAdd which is the value of hours to be added, it can be a negative value.
Return value: This method returns a LocalTime based on this time with the hours added.
Below programs illustrate the plusHours() method:
Program 1:
// Java program to demonstrate// LocalTime.plusHours() method  import java.time.*;  public class GFG {    public static void main(String[] args)    {          // create a LocalTime object        LocalTime time            = LocalTime.parse("19:34:50.63");          // print LocalTime        System.out.println("LocalTime before addition : "                           + time);          // added 3 hours using plusHours()        LocalTime value = time.plusHours(3);          // print result        System.out.println("LocalTime after addition : "                           + value);    }} |
Output:
LocalTime before addition : 19:34:50.630 LocalTime after addition : 22:34:50.630
Program 2:
// Java program to demonstrate// LocalTime.plusHours() method  import java.time.*;  public class GFG {    public static void main(String[] args)    {          // create a LocalTime object        LocalTime time            = LocalTime.parse("01:00:01");          // print LocalTime        System.out.println("LocalTime before addition : "                           + time);          // added -10 hours using plusHours()        LocalTime value = time.plusHours(-10);          // print result        System.out.println("LocalTime after addition : "                           + value);    }} |
Output:
LocalTime before addition : 01:00:01 LocalTime after addition : 15:00:01
References: https://docs.oracle.com/javase/10/docs/api/java/time/LocalTime.html#plusHours(long)
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