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Five free tools to choose perfect colors for your website.

Color coordination plays a big role in the look and feel of a website. An appealing color scheme is an important prerequisite for eye catching web design. Dull or very sharp colors or mismatch colors will not only look ugly it may overshadow other nice elements of your website. Choosing vibrant, harmonious colors that are …

How to validate email, SSN, phone number in Java using Regular expressions.


Regular Expressions offer a concise and powerful search-and-replace mechanism. They are patterns of characters used to perform search, extract or replace operations on the given text. Regular expressions can also be used to validate that the input conforms to a given format. For example, we can use Regular Expression to check whether the user input …