21st Computer Tech @21stCompTech

💻 Exploring 21st-century computing | 🚀 Tech trends, coding, AI & innovation | 🌐 Future-ready insights Joined May 2020

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21st Computer Tech @21stCompTech

11 months ago

@MarianaTimes Your thinking is very narrow.

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21st Computer Tech @21stCompTech

11 months ago

Abstract Classes vs Interfaces 👻 Abstract classes = half-built houses. 🚪 Interfaces = house blueprints. Java gives you both. Use wisely: Abstract for shared logic Interface for shared contracts #Java #OOP

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21st Computer Tech @21stCompTech

11 months ago

In JAVA Overloading vs Overriding: Know the Difference 🔥 Overloading vs Overriding ➡️ Overload: Same name, diff parameters (compile-time). ➡️ Override: Same name, same params, different behavior (runtime). One’s flexibility. The other’s identity. #Java

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21st Computer Tech @21stCompTech

12 months ago

Security → hash and encrypt data for safety. Date/Time API → handle dates and times cleanly. Annotations → add metadata for frameworks and tools.

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21st Computer Tech @21stCompTech

12 months ago

NIO → modern file reading/writing. Regex → match patterns in text. Logging → track app behavior.

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21st Computer Tech @21stCompTech

12 months ago

Master Advanced Java Functions! Here’s a quick cheat sheet 👇 #Java #Coding

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21st Computer Tech @21stCompTech

12 months ago

☕️ Java isn’t just coffee—it’s powerful code! Check out this visual guide to advanced Java functions every dev should know. #Java #Coding #CodingLife

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21st Computer Tech @21stCompTech

12 months ago

Important Python functions #Python #Coding

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21st Computer Tech @21stCompTech

12 months ago

* File.createNewFile(): This method attempts to create a new, empty file at the path specified by the File object. It returns true if the file was successfully created, and false if it already exists or couldn't be created for other reasons.

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21st Computer Tech @21stCompTech

12 months ago

* Thread.sleep(): This method causes the currently executing thread to pause for a specified amount of time (in milliseconds). It's often used to introduce delays in a program's execution.

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21st Computer Tech @21stCompTech

12 months ago

Important Java Functions and Their Uses * String.length(): This method returns the number of characters in a String object. For example, if you have String name = "Java";, name.length() would return 4.