c# - How do I check If brackets are of same -

i check if input string contain same amount of open/close brackets. if yes print out true else false. have wrote code there bug can help?

see code works fine if enter string '()' starts open bracket , ends close bracket if enter ')(' still prints out true?. output should be:

() = true (())=true ()) = false (() = false )( = false )(() = false  etc... 

thanks help

edit:

 using system;  public class program {   public  void main()  {      checkparentheses ("()");  }   public void checkparentheses (string inputparentheses){   int openparentheses  = 0;  int closeparentheses = 0;  (int = 0; < inputparentheses.length; i++)  {    if (inputparentheses[i] == '(')      {         openparentheses++;     }       if (inputparentheses[i] == ')') {         closeparentheses++;      }        if (openparentheses == closeparentheses)           console.writeline("true");       }   }   } 

instead of counting open/close parenthesys check order

public void checkparentheses(string inputparentheses) {     // level counter     int parenlevel = 0;     (int = 0; < inputparentheses.length; i++)     {         // open good, increment level         if (inputparentheses[i] == '(')             parenlevel++;         else if (inputparentheses[i] == ')')             parenlevel--;          // closing good, if level doesn't drop under 0         if (parenlevel < 0)         {             console.writeline("false");             return;         }     }     // @ end of loop, level should 0     if(parenlevel != 0)         console.writeline("false");     else         console.writeline("true"); }