Internal implementation of HashMap

Internal implementation of HashMap

This is one of the most commonly asked interview questions, “What is the Internal implementation of HashMap” OR “What are the data structures used in HashMap” OR “How HashMap maintains the uniqueness of keys”. In this tutorial, we will get answers for all these questions.  Continue reading “Internal implementation of HashMap”

FDMA vs TDMA.

Hello Friends,

This is regarding the terms from Computer Networks TDMA and FDMA. These two pre-3G technologies that have been utilized to improve the performance of the 2G network.

FDMA (Frequency Division Multiplexing Access):

FDMA is a method of dividing a single band into 30 discrete channels. Each channel would then be capable of handling separate traffic, whether it’s a call or a data transfer. This is a higher level of multiplexing and should not be confused with FDM (Frequency Division Multiplexing) which is a low level multiplexing process and occurs on the physical layer. FDMA hardware includes high performance filters that also help it in avoiding near-far problems which can deteriorate the call quality. Continue reading “FDMA vs TDMA.”

HTTP Apache Error: make_sock: could not bind to address 0.0.0.0:80

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This is one of my tutorials regarding the HTTP Apache server. Most of you may have faced the problem such as make_sock : could not bind to address 0.0.0.0:80 while installing HTTP Apache Server. Continue reading “HTTP Apache Error: make_sock: could not bind to address 0.0.0.0:80”

Simple validation in javascript.

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This is one of the simple code example for validation in javascript. By using the following code, we can make certain input field as a mandatory i.e. one cannot proceed until and unless there is certain value in the required field. In this example we use the simple login screen where we are making the field Username as mandatory. Continue reading “Simple validation in javascript.”

Error 107 (net::ERR_SSL_PROTOCOL_ERROR)

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This is one of the tutorials regarding the error occurred while navigating through the browser accessing the web pages.

Most of you use various browsers for browsing for example Firefox,IE or may be a Chrome browser. Sometimes while accessing some webpages you may come accross some Error saying “security protocol not compatible with the site’s certificate requires some registry software”. This is the most commonly seen problem when using Chrome and IE browser. Continue reading “Error 107 (net::ERR_SSL_PROTOCOL_ERROR)”

Customized logo for wordpress blog

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This is one of my blog regarding Customized logo for wordpress blog. Most of us using WP for blogging purpose has to use some of the default screens for our blogs. One of this is using the login screen where the logo appearing is of wordpress.org. Continue reading “Customized logo for wordpress blog”

Adding themes externally to WordPress via Cpanel.

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Here is one of the tutorials regarding wordpress themes. Most of us WP bloggers may see number of themes over here and there on web and want to use the same for our blogs too. So here is one of the way to use the theme for our own blog using the file up-loader in cpanel.

First of all, just download the theme of your choice and then unzip those files. Then check for the folder structure and create the exact folder structure in the wp-contents/themes folder in your cpanel. Continue reading “Adding themes externally to WordPress via Cpanel.”

Add your own Logo in WordPress Blog

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This post explains how to add your own logo in wordpress blog. WP is one of the popular thing among the bloggers. However, when we use WP for blogging it comes with some default settings and configurations, among them one of is to set the name or header. By default the header contains the name of the blog that we set in the dashboard settings. Continue reading “Add your own Logo in WordPress Blog”