This Calculator app is an application
developed for android cells phones and tablets. It enables the users to
perform fundamental mathematical operations such as addition,
subtraction, multiplication and division on their phone. Being installed
on phone, it always remains with the user, helps in daily life
calculations and works as a typical android calculator app.
Below, I have briefly described the
features and scopes of Calculator Android app along with a point-wise
comparison with existing calculators. You can download the source code
and project files from the download links in this post. The source code
is complete and error-free.
About Android based Calculator App:

Fundamental mathematical calculations
are required to be performed in every step of human life. In most of the
places such as in shops, hotels, medicals, schools etc., separate
calculators are used for calculation. But, these calculators, being
larger in size and needing extra power, can’t be carried all the time
with us. This creates the necessity of a mobile calculator which is
always with us.
Since android applications are the most
compatible ones and easily available, android cell phones and tablets
are the most widely used devices all over the world. They offer several
kinds of facilities and one of them is calculator which is fundamental
application of each phone. Looking at the growing use of android phones,
it can be said that a Calculator app as Android Project has good scope
in today’s technological world.
Comparison:
The comparison between existing
traditional calculators and the proposed Calculator app for Android can
be done in the following points:
- Size: The separate calculators are larger in size due to use of own circuit board whereas android calculator is installed in cell phones.
- Power: A small battery power of cell phone is enough for running android calculator but traditional calculator consume comparatively higher power.
- Accuracy: The accuracy of both the calculators depends upon their programming. Calculators can be designed for the desired accuracy.
- Cost: Android Calculator, being an application, can be downloaded free of cost and installed on phone. The traditional calculators have their own hardware. As a result of this, they need to be purchased.
- Ease and comfort: Most of the android cell phones are of touch screen type. So, calculator app Android is easy and comfortable to use.
Features:
- It is easy and comfortable to use.
- The application can be easily downloaded and installed on any android cell phone and tablet.
- It provides the facility to perform fundamental mathematical operations.
- The application gives fast and accurate result.
- This application consumes very small power of your cell phone.
When the Calculator App is executed, Main.Xml
layout code will run. This is the first design layout that will load
features such as height, width, background details, etc. Then, the java
file, calculator activity, will load design parameters like buttons, click functions, text display, etc. AndroidMainfest.xml is the main configuration file of the project that will load the main layout by default.
The source code of Android based
Calculator App can be found in the file downloaded via the download link
in this page. This project seems to have a good scope in all android
cellphones and tablets and smoothly supports the touchscreen operations.