java.math.expression.parser
arithmetic_expression_evaluator
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| java.math.expression.parser | arithmetic_expression_evaluator | |
|---|---|---|
| 2 | 1 | |
| 35 | 7 | |
| - | - | |
| 6.1 | 0.0 | |
| 4 months ago | almost 3 years ago | |
| Java | Go | |
| Apache License 2.0 | - |
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java.math.expression.parser
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is there premade function that gets mathematical Strings ( for example "(3+4+5)/sqr(20)") and returns result
Not built in to the Java language or SDK, but there's open source libraries such as https://github.com/sbesada/java.math.expression.parser that will do what you want.
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Can't figure out "java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.Double" error
You might then want to use some specific math parser Java library. E.g. this sbesada/java.math.expression.parser.
arithmetic_expression_evaluator
What are some alternatives?
aviatorscript - A high performance scripting language hosted on the JVM.
cel-go - Fast, portable, non-Turing complete expression evaluation with gradual typing (Go)
ExprTK - C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html
MathParser.org-mXparser - Math Parser Java Android C# .NET/MONO (.NET Framework, .NET Core, .NET Standard, .NET PCL, Xamarin.Android, Xamarin.iOS) CLS Library - a super easy, rich and flexible mathematical expression parser (expression evaluator, expression provided as plain text / strings) for JAVA and C#. Main features: rich built-in library of operators, constants, math functions, user defined: arguments, functions, recursive functions and general recursion (direct / indirect). Additionally parser provides grammar and internal syntax checking.
JavaParser - Java 1-17 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.
ExpressionEvaluator - A Simple Math and Pseudo C# Expression Evaluator in One C# File. Can also execute small C# like scripts