Method charCodeAt

ij/src/main/java/ij/macro/Functions.java:6840–6845

()

	}

	double charCodeAt() {
		String str = getFirstString();
		int index = (int)getLastArg();
		checkIndex(index, 0, str.length()-1);
		return str.charAt(index);
	}

	void doWand() {
		int x = (int)getFirstArg();