Stack problems...

Question

writing a program to convert an infix expression to post fix. I first need to check to make sure there are a correct amount of parenthesis in the equation by checking if is an "(" then push it to stack, if it is a ")" then check if stack is empty, and if not then pop stack. Lastly at the end of parsing the string I should check if stack is empty and if it isn't print an error.
My problem right now is when I try to run my application as I get an error msg in my prompt window as follows:
exception in thread "main" java.lang.NoSuchMethodError: main
here is my code:
import java.io.*;
import java.util.*;
import java.util.Stack;
import java.lang.String.*;
public class temp
public static void main(){
//Read in string using Keyboard class
     String infix = "";
     Stack myStack = new Stack();
     System.out.print("Enter Equation:");
     infix = Keyboard.readString();
     for (int n=0;n<infix.length();n++){
               char ch = infix.charAt(n);
               if (ch == '('){ myStack.push(new Character(ch));}
               if (ch == ')'){
                    if(myStack.empty()){ System.out.print("Error: Missing (");
                    }else{ myStack.pop();}
     if(myStack.empty()){ System.out.print("Equation Correct");}
     else{ System.out.print("Error: Missing )");}
}Thanks for any help!

Answer 1

thanks... now I'm getting
line 9: <identifier> expected
public static void main(String[]){
and
line 9: missing method body, or declare abstract
public static void main(String[]){