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Project Showcase

Creating a calculator app using Windows Forms App .NET framework and C#

The journey of learning C# by building a calculator app

By Zheng Xian Dec 2025

In this project, I learnt how use C# to code a calculator app.

Background

This simple coding project was done during a polytechnic module, Application Programming. We learnt C# and created a calculator using the Windows Forms App .NET Framework. At the start I was really questioning what this module even taught, because we were just told to use this Windows Forms App template all the way. All we did was learn C#.

Making a calculator

At the start of creating a calculator app, I figured it would be pretty easy. But boy I was wrong. Here's is the process of how I designed the calculator.

For the arrangement of calculator buttons, we were given a set layout to follow.

Implementation Details

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Early prototype of the Jovan Nanobot Machine

Results

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Key Learnings

Conclusion

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