Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    public static boolean isToken(String tail) {
        if (tail == null || tail.length() == 0)
            return false;
        boolean result = isAlphabetic(tail.charAt(0));
        for (int i = 1; i < tail.length(); i++) {
            result = result && (isAlphabetic(tail.charAt(i)) || isDigit(tail.charAt(i)) || (tail.charAt(i) == '_')
                    || (tail.charAt(i) == '[') || (tail.charAt(i) == ']'));
        }
        return result;
    }

    private static boolean isAlphabetic(char c) {
        return ((c >= 'a') && (c <= 'z')) || ((c >= 'A') && (c <= 'Z'));
    }

    private static boolean isDigit(char c) {
        return (c >= '0') && (c <= '9');
    }
}