The given App is able to calculate the expression and able to perform basic arithmetic calculations including addition,subtraction,multiplication,division. The class used in given code to evaluate the Arithmetic expression is 'ExpressionBuilder' which has been imported from 'net.objecthunter:exp4j:0.4.4' To include the given dependency, open the gradle folder and then in build.gradle file(Module:app) add the following the line:
- implementation 'net.objecthunter:exp4j:0.4.4' and click sync now. I hope you will like my work.