DEV Community: ihsaan muhammed

JVM

ihsaan muhammed — Sat, 18 Jul 2026 14:06:03 +0000

The Java Virtual Machine (JVM) is a software-based engine that executes Java programs. It allows Java applications to run on any operating system without modification, making Java platform-independent through the principle of "Write Once, Run Anywhere (WORA)."

STEP -- 1
Write Java Code

Source code is written in a .java file.
**
STEP -- 2**
Compile

The Java compiler (javac) converts the source code into bytecode (.class files).

STEP -- 3
Execute

The JVM loads the bytecode, verifies it, and executes it by translating it into machine code for the host operating system.

Advantages of the JVM

1) Platform independence
2) Automatic memory management (Garbage Collection)
3) Security through bytecode verification
4) Performance optimization with the JIT compiler
5) Multithreading support

HTML ATTRIBUTES

ihsaan muhammed — Wed, 15 Jul 2026 15:15:49 +0000

OUTLINE OF HTML ATTRIBUTES

HTML attributes are special properties that provide additional information about HTML elements and define how they behave or appear on a web page. They are placed inside the opening tag of an HTML element and are written as name="value" pairs. Attributes help developers create interactive, accessible, and well-structured web pages. Common attributes include href for hyperlinks, src for images, alt for alternative image text, id for uniquely identifying elements, and class for grouping elements for CSS styling. Other useful attributes such as title, style, placeholder, required, disabled, width, height, and target enhance the functionality and presentation of web content. HTML also provides global attributes like lang and data-*, which can be used with most HTML elements. Proper use of HTML attributes improves website usability, accessibility, search engine optimization (SEO), and overall user experience, making them an essential part of modern web development.

SOME MAJOR TAGS ARE LISTED BELOW

1) href --> used to specify a hyperlink or a URL
2) alt --> Provides alternative text for an image if it cannot be displayed. It also improves accessibility for screen readers.
3)class --> Groups one or more HTML elements under a common name for applying CSS styles or JavaScript functionality.
4) title --> Displays additional information as a tooltip when the user hovers over an element.
5)lang --> Specifies the language of the content in an HTML element, helping browsers and search engines understand the text
6)style --> Applies inline CSS styles directly to an HTML element.

BLACK BOX TESTING

ihsaan muhammed — Tue, 14 Jul 2026 15:04:12 +0000

Black Box: The Mystery Behind Hidden Systems

A black box is a system or device whose internal workings are unknown or not visible to the user. People can observe the inputs given to the system and the outputs it produces, but the process that happens inside remains hidden. Black boxes are used in many fields, including aviation, artificial intelligence, electronics, and software engineering. In aircraft, the flight data recorder, commonly called the black box, stores important flight information that helps investigators determine the cause of accidents. In artificial intelligence, some machine learning models are also called black boxes because they make decisions without clearly explaining how they arrived at them. While black-box systems are often powerful and efficient, they can raise concerns about transparency, trust, and accountability. Understanding and improving the explainability of black-box systems is becoming increasingly important as technology continues to play a larger role in everyday life.