Calculator in Java with Source Code - javatpoint

 

how to create a calculator using java

Mar 14,  · Hello friends today we will learn how we can create a Simple Calculator Program in Java Using kovntikis.cf is going to be our first application using swing programming. This is going to be a simple GUI calculator app which will perform basic arithmetic operations like addition, subtraction, multiplication, division etc. How to Make a Simple Calculator in Java: After the "Hello World!" program, a calculator is one of the first things a programmer will learn to build in their introduction to coding. The reason for this is because of the simplicity of its structure in addition to covering most of the basi. Jul 25,  · Create a simple calculator using Java Swing. Swing Java8 Java Programming. Swing API is a set of extensible GUI Components to ease the developer's life to create JAVA based Front End/GUI Applications. It is built on top of AWT API and acts as a replacement of AWT API since it has almost every control corresponding to AWT controls.


Create a simple calculator using Java Swing


We will start by installing NetBeans. Download the whole IDE bundle version depending upon your processor architecture. Assume that you have successfully installed NetBeans on your machine. Start NetBeans from the Window. The NetBeans main window will appear as shown below. The NetBeans main window contains menus, toolbars, project pane, files pane, runtime pane, navigator pane, and other similar panes.

Creating a Blank Project To create and run a program, you have to first create a project. Here are the steps to create a demo project. The new project box enables you to specify the project type. Step 2 : — Choose the Java type from the given list. Step 3 : — From the New Application Tab, enter the project name and unselect the main class from it. Uncheck the Main class option from the project tab. Step 2 : — To add a Jframe, right click the project name in the Project window. Step 3 : — To the right of the Jframe, there is a Palette with a set of controls on it.

Click the Text Field and apply it on the blank Field form. Now click Propertiesthen change the text field to blank. Click on the Code and change the Variable Name to txtDisplay, how to create a calculator using java. Step 4 : — Select the Button and drag it to the Jframe form.

Change the text and the Variable Name as we did for the text field. Enter the value 1 for the text by selecting the properties. Do the same for all the buttons by changing the text and the Variable Name. The Final Jframe structure will be formed. Step6 : — Double click on any of the button. This will take the user to the source section where the major coding of the program is done. The image below depicts the Source section. The firstnum term is to accept the first number entered, whereas the secondnum is to accept the second number stored.

The variable result is how to create a calculator using java to store the output value. How to create a calculator using java Code for the Number Button on Java Calculator To get a text from a form object, you can use the getText method of the object if it has one.

So to get the text from btnOne we could use this code:. Arithmetic Codes for the Button The code for the Addition operation is as shown below. The parse statement is used in order to convert the string argument as a signed decimal integer, how to create a calculator using java. The number entered into the EditText textbox is taken from the EditText how to create a calculator using java stored temporarily in a variable. Therefore the getText method can be used to retrieve the data, and the setText method to display the data.

The elswhere. Similarly, do this for all the other logics to be performed. For each logic, the operation to be performed is clearly stated.

The Equal action button performs according to the required logic. For this, we make use of the if statements. If the user prefers addition, the firstnum and the secondnum will be added and the answer will be stored in the result. The Clear button is used to remove the previously used values from the text Display, how to create a calculator using java.

For this the secondnum will be set to 0 and the textField must be set to blank. Enter the first number, and second number followed by the logic to be applied. Now click the Equal action button. The result will be displayed on the text Field. The first number is entered. The addition operation has been performed successfully. The rest of the arithmetic operations can be performed in a similar manner.

Conclusion : — We hope you enjoyed this informative article on how to create a calculator in Java using Netbeans and will check out our other articles such as Create A Login Page Class Form In Java Using Netbeans or about how to install Netbeans on your computer in detail.

The course comes with over 12 hours of video that covers 12 major topics such as Java basics, polymorphism, streams, concurrency and much more, how to create a calculator using java.

The course has 5 hours of video where you will learn to build a media player, games, messenger application and much more in Java.

This is now become very easy and simple to calculate your life plans and objectives by using the free online calculator, which provides you the basic 5 calculating function of your life, by using this calculator you can calculate your loan, credit, and dues amount which are going to be payable by you in future to settle or make anything in your current life.

This help me some how but Try to add a page of source code and some time leave your different account like YouTube where you can add that video. With the help of Java, at the time of creating the basic application, at the launching time, it has shown epson error code 0xf1 and for that, it has stopped to run the application. Save my name, email, and website in this browser for the next time I comment. Eduonix Blog. Java Programming. Introduction to Java Collections Framework. Hello, Please Send me the Square root calculation code.

Equals method not working. Please enter your comment! Please enter your name here. You have entered an incorrect email address! In this article, we will study about myths of java programming which are just a misconception and incorrect views about java. Different myths of Java With Java 8, we were introduced to a new abstraction called Stream, using which we can process data in a declarative manner.

This, when Contact us Courses Deals. All Rights Reserved.

 

Basic calculator in Java - Stack Overflow

 

how to create a calculator using java

 

Calculator in Java with Source Code, see the example of calculator in java, Swing Tutorial with example of JButton, JRadioButton, JTextField, JTextArea, JList, JColorChooser classes that are found in kovntikis.cf package. Jul 25,  · Create a simple calculator using Java Swing. Swing Java8 Java Programming. Swing API is a set of extensible GUI Components to ease the developer's life to create JAVA based Front End/GUI Applications. It is built on top of AWT API and acts as a replacement of AWT API since it has almost every control corresponding to AWT controls. The program takes the value of both the numbers (entered by user) and then user is asked to enter the operation (+, -, * and /), based on the input program performs the selected operation on the entered numbers using switch case. If you are new to java, refer this Java tutorial to start learning java programming from basics.