Simple Calculator

Simple calculator built using Java.

About this Project

This project's goal is to create a simple calculator app on which the user can perform simple mathematical operations and get the result displayed.

Getting Started

Prerequisites

To run this project, you'll need to have a basic environment to run a Java App.

Cloning the Repository

$ git clone https://github.com/awcasella/Simple-Calculator.git

$ cd Simple-Calculator

Java Installation

$ sudo apt install default-jre

$ sudo apt install default-jdk

Run project

Compile the main class

$ javac Calculator.java

Run the application

$ java Calculator

After that, build the package

$ javac -d . Calculator.java

Run the application from the package

$ java src.Calculator

Making a standalone application

Create a manifest.MF document:

$ touch manifest.MF

Open the document, and write this:

Main-Class: src.Calculator
Name: src/Calculator.class
Java-Bean: True

Then just save the document. To make an jar, type this:

$ jar cfm app.jar manifest.MF src

Run the .jar file:

$ java -jar app.jar

To make it executable on linux, type this:

$ chmod +x app.jar

Built With

• NetBeans: Quickly and easily develop desktop, mobile, and web applications with Java, JavaScript, HTML5, PHP, C/C++ and more.

References

• Interfaces gráficas com Swing. Caelum. Available at: https://www.caelum.com.br/apostila-java-testes-xml-design-patterns/interfaces-graficas-com-swing/. Access on January, 2020.

• Java Swing: Conheça os componentes JTextField e JFormattedTextField. DevMedia. Available at: https://www.devmedia.com.br/java-swing-conheca-os-componentes-jtextfield-e-jformattedtextfield/30981. Access on January, 2020.