See above code as[GitHub Gist](https://gist.github.com/gauravkukade/1c12a2e35d8803106d4cf2b0e11f6b18#file-determine-datatype-groovy)

In the above program, we can see that the`names` is an`ArrayList` and`blogname` is a`String` object.

When we call the`getClass()` method on these objects it prints its respective datatype.

See above code as[GitHub Gist](https://gist.github.com/gauravkukade/eafc65547cd3cd54877ca5d54eec8acc)

In the above program, I have defined one String`blogname`. I have used the`instanceof` keyword to check if the`blogname` implements the`String` class and it prints`true`. It means the`blogname` is an instance of the`String` class.

If you know any other way to check the datatype of an object, please comment below to help the community. Thank you.

You can check my YouTube channel[here](https://www.youtube.com/channel/UCl31HHUdQbSHOQfc9L-wo3w)

-[Hello World In Groovy](https://coderolls.com/hello-world-in-groovy/)

See above code as[GitHub Gist](https://gist.github.com/gauravkukade/b1ceabac137864efd7258b60610cd9dd)

1. In the first case, we have used the`.now()` method of the`Instant` class to get the current timestamp.

See above code as[GitHub Gist](https://gist.github.com/gauravkukade/a965f1a078d382ff7366e7ba6d13561c)

1. In the first case, we are got the`timestamp` using the system time in milliseconds. We can get the system time in millisecond using the`System.currentTimeMillis()`.

See above code as[GitHub Gist](https://gist.github.com/gauravkukade/ea3bc951f15be0010569d306ccafa975)

In the above example, we have used`.from()` of the`Timestamp` class to get the current timestamp from the`instant` object.

See above code as[GitHub Gist](https://gist.github.com/gauravkukade/a031b1904d4efaf758a59462ee2dc02e)

In the above example, we have used the`.toInstant()` method on the`timestamp` object to get the current timestamp (as Instant ).

We will see how to get the current date-time in java. Also, we will see how we can format them using the SimpleDateFormat.

You can check my YouTube channelat:https://www.youtube.com/channel/UCl31HHUdQbSHOQfc9L-wo3w

You can check my YouTube channel[here](https://www.youtube.com/channel/UCl31HHUdQbSHOQfc9L-wo3w)