Thread: Creating a number char by char

I am writing a method that takes in a string of characters, one character at a time. I am forming the combination of number, decimal point and exponent into a long and adding it to a stack. This has limits such as the max length of the number, exponent and dec portions. Right now, I have been staring at this so long that I feel like I am making it way more complicated than it needs to be, and the output isn't right. I send it 99.99 and end up with 9 0 9 as separate tokens. Not sure where my problem is and having trouble debugging. Any suggestions would be super appreciated.

	public void number(char dig, boolean lc) {
		if (dig == '.') {
			isReal = true;
			return;
		} else if (dig == 'e') {
			isReal = true;
			exp = true;
			return;
		}
		num = Character.getNumericValue(dig);
		if (isReal) {
			if (exp) {
				if(String.valueOf(exponent).trim().length() <= zLength) // fits in exponent limit
				exponent = (int) (exponent * 10 + num); // add to exponent tracker
			} else {
				if(String.valueOf(number).trim().length() <= yLength){ // fits in decimal limit
				decEnc++;
				number = number + (num * (long) Math.pow(.1, decEnc)); // add to number in correct decimal place
				}
			}
		} else if (number == 0) {
			number = num;
		} else {
			number = number * 10 + num;
		}
		if (lc) { // last character that will be encountered for this token
			if (isReal) {
				if(Math.min(number, Math.pow(10, xLength)) == number){ // fits in number limit
					if (exp) {
						number = (long) Math.pow(number, exponent); // adds exponent to the number
					}
				tokenList.add(number);
				}
			} else if (String.valueOf(number).trim().length() <= intLength) {// was an int
				tokenList.add(number);
			} else {
				System.out.println("Error in number entry: " + number);
			}
			number = 0;
			num = 0;
			decEnc = 0;
			decimalEncountered = false;
			isReal = false;
			exponent = 0;
			exp = false;
		}
	}

I think my error is in this line

 				number = number + (num * (long) Math.pow(.1, decEnc)); // add to number in correct decimal place

but I can't seem to get it working. number is a long.

It's not an eclipse error, it's a math error.

I input 99.99 one char at a time into that method, then print the stack.
It should print 99.99
Instead I get 9 0 9

Hello.
Please post your entire code.
Also, tell us what "lc" is doing in the method you posted? When is it true and when is it false?

Syed.