Converting inserted string to a compilable expression

Question

I\'m somehow new to Java so my question can seem trivial, however i cannot find an answer to it anywhere in my books.

I want to initiatie a dialog with a user in which h

Answer 1

You could also look at JScheme. Need to compile & run with the jscheme jar file.

import jscheme.JS; 

String query = "(+ 10 20)";
System.out.println(query + " = " + JS.eval(query));

See third example down at http://jscheme.sourceforge.net/jscheme/doc/userman.html#si

JScheme main page at http://jscheme.sourceforge.net/jscheme/main.html