Arithmetic_Calc.java

import java.util.Scanner;

public class evaluateExpression {

    // http://www.careercup.com/question?id=4911380140392448
    public static void main(String[] args) {
        // An equation with +, -, /, *
        String anotherEquation;
        System.out.print("Please enter math Expression: ");
        Scanner kb = new Scanner(System.in);
        anotherEquation = kb.nextLine();

        int another = computeAnother(anotherEquation);
        System.out.println(another);
    }

    static int computeAnother(String equation) {
        int result = 0;
        String noMinus = equation.replace("-", "+-");
        String[] byPluses = noMinus.split("\\+");

        for (String multipl : byPluses) {
            String[] byMultipl = multipl.split("\\*");
            int multiplResult = 1; //
            for (String operand : byMultipl) {
                if (operand.contains("/")) {
                    String[] division = operand.split("\\/");
                    int divident = Integer.parseInt(division[0]);
                    for (int i = 1; i < division.length; i++) {
                        divident /= Integer.parseInt(division[i]);
                    }
                    multiplResult *= divident;
                } else {
                    multiplResult *= Integer.parseInt(operand);
                }
            }
            result += multiplResult;
        }

        return result;
    }
}