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Thread: Simple question...I hope
 01072011, 06:23 PM #1Member
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Simple question...I hope
Java Code:public class Calculator2 { public static void main(String[] args){ double result = result_of("17+2811"); System.out.println(result); } public static double result_of(String equation) { if(equation.contains("+")) { //equation.split not String.split String[] split_up_equation = equation.split("[+]"); double result = 0.0; for(int i=0;i<split_up_equation.length;i++) { //add the double value result += result_of(split_up_equation[i]); } return result; } if(equation.contains("")) { String[] split_up_equation = equation.split("[]"); double result = 0.0; for(int i=0;i<split_up_equation.length;i++) { result += result_of(split_up_equation[i]); } return result; } return Double.valueOf(equation); } }
Can anyone help me
 01072011, 06:27 PM #2
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 01072011, 06:28 PM #3
What happened when you tried? Keep in mind that you don't have to use the += operator; it's just a shortcut for doing something like this:
Java Code:int x = 7; x = x + 2; // same as x += 2;
Edit Too slow! But recommended reading: http://download.oracle.com/javase/tu...bolts/op1.htmlHow to Ask Questions the Smart Way
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 01072011, 06:29 PM #4Member
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so
Java Code:if(equation.contains("")) { String[] split_up_equation = equation.split("[]"); double result = 0.0; for(int i=0;i<split_up_equation.length;i++) { result = result_of(split_up_equation[i]); } return result; } return Double.valueOf(equation);
Java Code:double result = result_of("5020");
 01072011, 06:32 PM #5
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 01072011, 06:37 PM #6How to Ask Questions the Smart Way
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 01072011, 06:40 PM #7Member
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