One of the two ways to use a thread in Java is to extend the Thread object. It can be done like the following. Of course this is only good if you are not extending another Class. You must override the run method, and you will need to call start() to start the thread and…
Now that we’ve looked at some basic Layout Manager options, lets dive into building one. We’re going to work in the GUI that we’ve been building, first in Extending the JFrame Class, and then when we added JComboBoxes and JList to our project. Here we’re going to combine and use a couple of different layouts…
We’ve been using the null layout manager, in our previous examples of Java Swing. This is sometimes referenced as an absolute positioning layout, because we are required to control how the items are laid out and where. We do this with setBounds() or another method which allows us to define both the size of the…
In our first examples of building a Form in Java, we looked at adding a button and using a simple event listener. Now we want to make a useful button with our Java GUI, ones that will load and save data, as well as one which will allow for creating new data. We’re going to…
Why we use Combo Boxes Combo boxes are a drop down menu option for forms. They allow us to limit the number of potential choices for a person to make, increasing the chance of a person picking a valid and correct option. In our example where we were extending a class for a Java GUI,…
In our previous examples, we built the GUI from within the main method, and then built the GUI into an external class. We said that was beneficial in case we wanted to extend a class, like we will here. While this will create some extra work on the front end, it will make things easier…
In our previous example, we set up the GUI Frame inside of the main function. However, we want to move it to a different class so that we can separate out the logic of application from the interface. This will allow multiple people to work on different parts of the application easier, make it easier…
In early versions of Java, there was a GUI (Graphical User Interface) measure using AWT (Abstract Windowing Toolkit). However, it was quickly replaced with Swing, part of the JFC (Java Foundation Classes) for a couple of reasons. Java Foundation Classes (JFC) are a set of GUI components which simplify the development of desktop applications. Java…
