How would I write a java calculator?

Name the file SciCalc.java.

The project must have a test file to test for functionality that is named TestSciCalc.java

The program should accept PI $(3\mathrm{.}14159)"$pi$"$and EULER $(2\mathrm{.}71828)"$e$"$as numbers from the user and perform math operations.

The program should run continuously until the user exits it$.$

The program should round answers to $5$decimal places.

$***$Required Methods $***$

Variables:

PI contains $5$decimal places $(3\mathrm{.}14159)$and subsequently, mathematical operations can be performed with the value of $"$pi$"($i$.$e$.,$PI x $5).$

EULER contains $5$decimal places $(2\mathrm{.}71828)$and subsequently, mathematical operations can be performed with the value of $"$e$"($i$.$e$.,$EULER $5)$

Methods:

Addition $()-$Provides the ability to add two numbers together and produce a sum

Multiplication$()-$Provides the ability to multiply two numbers together and produce a product

$$Subtraction$()-$Provides the ability to subtract two numbers together to produce a difference

$$Division$()-$Provides the ability to divide two numbers and produce a quotient

$$Square $()-$Provides the ability to square an entered number

SqRt$()-$Provides the ability to determine the square root of an entered number

Sin$()-$Provides the ability to determine the sin value of an entered number

Cos$()-$Provides the ability to determine the cos value of an entered number

Tan $()-$Provides the ability to determine the tan value of an entered number All