Simple calculator program in java using methods

This tutorial would take you through the procedure of building a simple calculator in Java. So I would advice, you print it out and follow the instructions.  If you are completely new to Java and Netbeans you can take these two lessons:

You can print out this page so that you can easily follow along (you can also open it in a different display)
 

What you would need

• Netbeans IDE
• A pen and a paper(optional)

Step 1: Create an Application in Netbeans.

Name the application CalculatorProgram.
If you don’t know how to create new application.

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You can get it here: Your First Java Program.

Step 2: Add a JFrame Form to the Application
Right-click on the name of the application in the Projects tab by the left of the window and Choose New > JFrame Form
Enter the name pnlCalculator next to the Class Name and click on Finish.

You can see that the form is added as shown below

Step 3: Add two JPanels to the form and then resize and position them as shown. You can get Panels at the right hand side in the palettes tab.

Step 4a: Place a TextField in the

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