public int hashCode()

// Java program to demonstrate
// OptionalLong.hashCode() method
 
import java.util.OptionalLong;
 
public class GFG {
 
    public static void main(String[] args)
    {
 
        // create a OptionalLong instance
        OptionalLong opLong
            = OptionalLong.of(253255);
 
        System.out.println("OptionalLong: "
                           + opLong.toString());
 
        // get hashCode value using hashCode()
        System.out.println("HashCode value: "
                           + opLong.hashCode());
    }
}

OptionalLong: OptionalLong[253255]
HashCode value: 253255

// Java program to demonstrate
// OptionalLong.hashCode() method
 
import java.util.OptionalLong;
 
public class GFG {
 
    public static void main(String[] args)
    {
 
        // create a OptionalLong instance
        OptionalLong opLong
            = OptionalLong.empty();
 
        System.out.println("OptionalLong: "
                           + opLong.toString());
 
        // get hashCode value using hashCode()
        System.out.println("HashCode value: "
                           + opLong.hashCode());
    }
}

OptionalLong: OptionalLong.empty
HashCode value: 0