We looked at Serializing a Single Object previously, but what if we need to serialize multiple objects, like an array? Serializing an Array Well, we can do that fairly easily as well. Java can take an array of objects, and serialize it. However, it will only work if you de-serialize it as an array. Consider…
As we mentioned in the What is Serialization post, we can use Serialization to move data into or out of a data stream. So let’s take a look at a simple class, and one that we would want to serialize. This is pretty simple, as you’ll see, we’re just going to add an interface to…
Java serialization is a mechanism to transform an object into a byte stream, and back again via Deserialization. This is important for anything which needs to be transmitted to another device/service such as writing to a file, across a network, etc. In order to do this, we need to implement the Serializable Interface. This provides a…
Next we need work on improving the UI (User Interface) a little bit. We’ll do this by adding images, and removing the debug banner.. Adding Images Our first step will be to add images to our existing application that we’ve already built. To do this, I’ve copied the provided images into an assets folder. To…
We’ve seen how to get roll the dice from the main widget with a button by using the GlobalKey in our previous notes. But what if we want to update the score if a single dice is clicked…I mean rolled? Well that requires talking to the parent widget to let us know that it has…
We are going back into the main.dart file. We need to import the dice.dart file we created in the previous part. We’ve already removed the unnecessary comments. Next we’re going to build the app so we can see what we need. We’re going to remove the counter and the floating action button as well as…
We’re going to build a Dice Game in Flutter, which will have two pairs of dice to allow you to randomly get some values. We’re going to do some different things this time, such as: Making a class widget which we can insert into our game, so we don’t have to duplicate ourselves, Use a…
Most languages provide a way to work with Strings, and Java is no exception. Java sometimes provides several ways to create, as well as work, with strings. We’ll look at the most common ways to work with Strings that you will experience. Creating a String Where you get a string will vary based upon your…
