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Meaning of “CONTENTS, ALLOC, LOAD, READONLY, CODE” in ELF sections

Once we disassembled the ELF to check the sections using “objdump” command, we can see the lines … Read more

Check sections and its memory map of Binary / ELF using GDB

In this post, we hope you already have GDB debugging setup already done for your development or … Read more

Add category cloud in single post / page in WordPress

Category cloud can be added by using the taxonomy argument to cause a cloud of categories to … Read more

Create Custom Meta Descriptions in Osclass

Osclass already provides a site description and a `meta_description_filter` extension point. Use a plugin to choose concise page-specific text, leave escaping to one known output boundary, and verify the rendered canonical pages instead of editing core files.

Create Arrays in PHP

PHP provides simple function to create an array using “array()” API which creates an empty array. In … Read more

Show Subcategories on WordPress Category Archives

On a category archive, WordPress already knows which term is being viewed. Read that queried term, fetch its direct children with `get_terms()`, and render escaped term links—without hard-coding IDs into a fragile copied template.

Add Your Facebook Page to Your Website Using the Page Plugin

Adding a Facebook Page plugin to your website is a powerful way to increase engagement and connect … Read more

Solved: System.out: android.os.NetworkOnMainThreadException

In Android application, if you are doing some network operations like download from some external website or … Read more

Implement stack in C programming

In continuation of demonstrating simple implementation of data structures, as we shown in our last post “How … Read more

Read Android API Level and Build Information Safely

Android’s `Build` and `Build.VERSION` APIs expose platform and firmware metadata, but those values serve different purposes. Use the numeric API level for compatibility checks, treat display strings as diagnostics, and avoid turning hardware fields into tracking identifiers.

Convert an existing Android application to a library module

As we have seen in our post, “How to develop first android Application/App in Android Studio” where … Read more

Byte Array To Integer And Integer to Byte Array Conversion using JAVA

If you are working in some network related data transfer like sending some commands over socket, then … Read more

Check if Filepath is Normal File or Directory in JAVA

In our previous post, we seen how to identify if a file is present or Not using … Read more

Add a Google Map and Marker to a Contact Page

A useful contact map does more than draw a pin. This implementation uses Google Maps JavaScript API’s current advanced marker, restricts the browser key, keeps the address usable without JavaScript, and avoids the blank-map mistakes that waste an afternoon.

Generate random number between two numbers in Java

This post demos how you can get the random number between two numbers in a simple java … Read more

Working with Strings in Kotlin

The basic datatype of strings in Kotlin is mostly similar as that of used in java. Only … Read more

Fix Yocto “Installed but Not Shipped” QA Errors

This Yocto QA failure is a packaging mismatch: `do_install` placed an artifact under `${D}`, but no output package claimed it. Trace the reported path, package it intentionally or remove it, then inspect the generated package rather than hiding the warning.

Fix curl/curl.h Missing on Ubuntu C Builds

The `curl` command is not the libcurl development kit. Current Ubuntu builds normally need `libcurl4-openssl-dev`, which supplies headers and build metadata. Use pkg-config or CMake’s CURL target so transitive link flags and non-default installation paths remain correct.

Fix openssl/ssl.h Missing on Ubuntu Builds

The OpenSSL command and runtime library are not enough to compile C/C++ code. Ubuntu puts headers, unversioned linker files, and pkg-config metadata in `libssl-dev`. Install it for the correct architecture, then let pkg-config or CMake supply paths instead of hard-coding `/usr/include`.

C atexit(): Cleanup on Normal Termination, Not Every Exit

`atexit()` registers no-argument callbacks for normal program termination. They run in reverse registration order after `main` returns or `exit()` is called—but not after `_Exit()`, `_exit()`, `abort()`, an unhandled fatal signal, a crash, or a forced kill.