#BLUEJ CALCULATOR HOW TO#

Specifies that components should be laid out toward a line as determined by the target container’s ComponentOrientation property. Specifies that components be laid out from top to button. Specifies that the components should be laid out from left to right. The first is the container you wish to apply the layout too, and the second argument is a constant provided by the BoxLayout class, which specifies the axis along which the components will be laid out.īelow is a list of the constants and their description: Constant PAGE_AXIS )) īoxLayout constructor takes in two arguments. setLayout ( new BoxLayout (mainPanel, BoxLayout. JPanel mainPanel = new JPanel () mainPanel. A new instance of this class is then passed into the setLayout() panel method to be worked on.īelow is an example of setting a panel’s layout to BoxLayout: It can be accessed using the BoxLayout class provided by the Java Swing package. It also allows to ’lay out’ components in a row as a horizontal box next to each other. It allows you to stack components on top of each other in a column as a vertical box.

The BoxLayout is the simplest and easiest to implement next to the flow layout. Some layout managers Java provides out of the box are: They position each GUI component on their panel or frame. Layout managers allow us to align components in any desired position on the panel.

#BLUEJ CALCULATOR HOW TO#

Know how to build a simple calculator from scratch using Java.Get to know about the logic that runs on simple calculators.Get comfortable using BoxLayout to build UIs in Java.I recommend NetBeans.īy the end of this tutorial, the reader will: A suitable Integrated Development Environment (IDE).Basic knowledge of using OOP principles in Java.Have basic knowledge and understanding of Java programming language.To follow along, it is advisable to have the following: c) Adding ActionListeners to the buttons.Step 1: Building the User Interface (UI).The tutorial will also show to the readers to the power of BoxLayout and how they can use it in other programs to convert their console apps into GUI apps.

However, have you ever asked yourself how these calculators function under the hood? If you are curious to know more about that, you have come to the right place. You have probably used a calculator at one point or the other to compute business transactions as an adult, solve high school math assignments as a teenager, or even toy with it as a kid. We will also learn how real-life calculators work under the hood by incorporating functionalities like addition, subtraction, division, multiplication, etc. This calculator will consist of the GUI and the logic part, which performs computations.

In this tutorial, we will build a calculator from scratch using the BoxLayout to align the components of the calculator correctly.

Bluej calculator