validated Identifier

ValidateJava.java

/**
     * 判断输入的字符串是否为Java保留的关键字
     * @date 2013-08-05
     * 不合法时返回true;
     * 校验通过返回false;
     */
    public static boolean validateReservedKeywords(String inputString) {
        boolean flag = false;
        final String[] keywords =
                        {"abstract", "continue", "for", "new", "switch", "assert", "default", "if",
                                        "package", "synchronized", "boolean", "do", "goto",
                                        "private", "this", "break", "double", "implements",
                                        "protected", "throw", "byte", "else", "import", "public",
                                        "throws", "case", "enum", "instanceof", "return",
                                        "transient", "catch", "extends", "int", "short", "try",
                                        "char", "final", "interface", "static", "void", "class",
                                        "finally", "long", "strictfp", "volatile", "const",
                                        "float", "native", "super", "while"};
        // check if identifier is a java keyword
        for (String s : keywords) {
            if (s.equalsIgnoreCase(inputString)) {
                flag = true;
                break;
            }
        }
        return flag;
    }

    /**
     * 判断输入的字符串是否为Java合法的标识符命名规则
     * @date 2013-08-05
     * 不合法时返回true;
     * 校验通过返回false;
     */
    public static boolean validatedIdentifier(String inputString) {
        boolean flag = false;
        int c = 0;

        try {
            if (Character.isJavaIdentifierStart(inputString.charAt(0))) {
                c++;
            }
            for (int i = 1; i < inputString.length(); i++) {
                if (Character.isJavaIdentifierPart(inputString.charAt(i))) {
                    c++;
                }
            }
        } catch (StringIndexOutOfBoundsException e) {
            return true;
        } finally {
            if (c != inputString.length()) {
                flag = true;
            } 
        }
        return flag;
    }