I want to write a project proposal with java

Project: Basic Scientific Calculator

project Abstract:

This is a first-time programming project, on how to use java swing to create a Basic Scientific Calculator.

This project Basic Scientific Calculator provides a basic calculation for Mathematics subject to help everyone to do calculation simple way.

• Using a simple calculator write a simple can add, subtract, multiply or divide two numbers, you will be able to run the program.
• Using Calculator get correct answers
• Primary calculator is easy to use formats
• Solve mathematics problems quickly and in the correct ways.
• Add more like solving equations and simple integration using with a calculator.

HIgh-level requirement:

This project uses JAVA 8 programming languages supported by most web browsers.

Hardware: LAPTOP, CALCULATOR

SOFTWARE: INTELLIJ, JGRASP

This project develops who can learn high-level mathematics, differential equation, algebra, and integration. Its like Application MATHWAY.

This is what I wrote but I need help to build a UML diagram, proof of concept, and Background required resources