The of(long) method help us to get an OptionalLong object which contains a long value which is passed as a parameter to this method.
Syntax:
public static OptionalLong of(long value)
Parameters: This method accepts a long value as parameter that will be set to the returned OptionalLong object.
Return value: This method returns an OptionalLong with the value present.
Below programs illustrate of(long) method:
Program 1:
// Java program to demonstrate// OptionalLong.of(long) method  import java.util.OptionalLong;  public class GFG {      public static void main(String[] args)    {          // Create a OptionalLong instance        // using of() method        OptionalLong opLong            = OptionalLong.of(45213246);          // Get value of this OptionalLong instance        System.out.println("OptionalLong: "                           + opLong);    }} |
Output:
OptionalLong: OptionalLong[45213246]
Program 2:
// Java program to demonstrate// OptionalLong.of(long) method  import java.util.OptionalLong;  public class GFG {      public static void main(String[] args)    {          // Create a OptionalLong instance        // using of() method        OptionalLong opLong            = OptionalLong.of(21438999);          // Get value of this OptionalLong instance        System.out.println("OptionalLong: "                           + opLong);    }} |
Output:
OptionalLong: OptionalLong[21438999]
References: https://docs.oracle.com/javase/10/docs/api/java/util/OptionalLong.html#of(long)
