The plusHours() method of OffsetTime class is used to add specified no of Hours value to this OffsetTime and return the result as a OffsetTime object. This instant is immutable. The calculation wraps around midnight.
Syntax:
public OffsetTime 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 OffsetTime based on this time with the hours added.
Below programs illustrate the plusHours() method:
Program 1:
// Java program to demonstrate// OffsetTime.plusHours() method  import java.time.*;  public class GFG {    public static void main(String[] args)    {          // create a OffsetTime object        OffsetTime time            = OffsetTime.parse("12:16:10+11:00");          // print OffsetTime        System.out.println("OffsetTime before addition : "                           + time);          // added 3 hours using plusHours()        OffsetTime value = time.plusHours(3);          // print result        System.out.println("OffsetTime after addition : "                           + value);    }} |
Output:
OffsetTime before addition : 12:16:10+11:00 OffsetTime after addition : 15:16:10+11:00
Program 2:
// Java program to demonstrate// OffsetTime.plusHours() method  import java.time.*;  public class GFG {    public static void main(String[] args)    {          // create a OffsetTime object        OffsetTime time            = OffsetTime.parse("13:20:15+13:00");          // print OffsetTime        System.out.println("OffsetTime before addition : "                           + time);          // added -10 hours using plusHours()        OffsetTime value = time.plusHours(-10);          // print result        System.out.println("OffsetTime after addition : "                           + value);    }} |
Output:
OffsetTime before addition : 13:20:15+13:00 OffsetTime after addition : 03:20:15+13:00
References: https://docs.oracle.com/javase/8/docs/api/java/time/OffsetTime.html#plusHours-long-
