Convert String to operator(+*/-) in java

Question

I am using Stack class to calculate simple arithmetic expressions involving integers, such as 1+2*3.your program would execute operations in the order given,without regardin

Answer 1

Quick solution: Use below code for executing correct javascript Arithmetic expression in java.

    ScriptEngineManager manager = new ScriptEngineManager();
    ScriptEngine se = manager.getEngineByName("JavaScript");        
    try {
        Object result = se.eval(val);
        System.out.println(result.toString());
    } catch (ScriptException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }