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Static, Final, and Initialization Blocks

Table of Contents Introduction to Static, Final, and Initialization Blocks The Static Keyword in Java Static Variables Static Methods Static Blocks The Final Keyword in Java Final Variables Final Methods Final Classes Initialization Blocks...

Abstraction and Interfaces in Java

Table of Contents Introduction to Abstraction Types of Abstraction in Java Abstract Classes Interfaces Abstract Classes: Deep Dive Syntax and Usage Abstract vs Concrete Methods Constructors and Abstract Classes Interfaces: Deep Dive Syntax and...

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Methods, Overloading, and Recursion in Java

Table of Contents Introduction to Methods in Java Declaring and Calling Methods Method Parameters and Return Types Method Overloading Recursion in Java Advantages and Use Cases of Recursion Stack Memory and...

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Strings in Java – String Class, Immutable Nature, StringBuilder and StringBuffer

Table of Contents Introduction to Strings in Java The String Class String Declaration and Initialization String Immutability Common String Methods String Comparison String Concatenation and Performance StringBuilder vs StringBuffer Real-world Use Cases Summary and...

Arrays in Java – Single & Multi-dimensional Arrays, Array Operations

Table of Contents What Are Arrays? Advantages of Using Arrays Declaring and Initializing Arrays Accessing and Modifying Elements Iterating Through Arrays Multi-dimensional Arrays Common Array Operations Arrays vs ArrayList Real-world Examples Summary and What’s...

Loops in Java – for, while, do-while, break and continue

Table of Contents Introduction to Loops The for Loop The while Loop The do-while Loop Loop Control Statements: break and continue Infinite Loops Nested Loops Real-World Examples Summary and What’s Next 1. Introduction to...

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INDIA’S PROGRESS IN SCIENCE & TECHNOLOGY

INDIA’S PROGRESS IN SCIENCE & TECHNOLOGY Indus Valley Civilisation: India’s progress in science and technology is not a new phenomenon. As early as 2.500 B.C.,...

Science & Technology in India

The new scheme of Civil Services Main Examination - 2013 has Science and Technology theme in General Studies, Paper — III. In view of...

Technologically Advanced Countries in the World

Technology is the application of scientific knowledge for practical purposes, especially in industry. Many nations worldwide have used technology to enhance the quality of...

Milestones in Space Exploration

Milestones in Space Exploration Date Mission Achievements Country/ Organization Mission Name 1931 First German military liquid-fuelled rocket engines developed Germany Walter Riedel 10 May 1946 First space research flight (cosmic radiation experiments) United States captured and...

Use Your Pen Drive as Your System RAM

1) First Insert the Pen Drive at least having a memory of 1GB ,( Preferably 4GB) in the Given USB port of the Computer. 2)...

Computer Devices & their Inventors

Computer Devices & their Inventors=>Key board— Herman Hollerith first keypunch devices in 1930’s=>Transistor— John Bardeen, Walter Brattain & Wiliam Shockley ( 1947-48)=>Integrated Circuit— Jack...

Some Important Portals & their Founders

Some Important Portals & their Founders  1. Google— Larry Page & Sergey Brin2. Facebook— Mark Zuckerberg3. Yahoo— David Filo & Jerry Yang4. Twitter— Jack Dorsey...

Computer Questions

1. A peer-to-peer LAN is an appropriate network architecture for - Home network. 2. In CSMA/CD, the computer sends a fixed unit of data called...

Polar Satellite Launch Vehicle (PSLV)

The Polar Satellite Launch Vehicle (PSLV) is an expendable launch system developed and operated by the Indian Space Research Organisation (ISRO). It was developed...

Global Positioning System (GPS)

The Global Positioning System (GPS) is a space-based satellite navigation system that provides location and time information in all weather conditions, anywhere on or...

MICROSOFT EXCEL SHORTCUT KEYS

MICROSOFT EXCEL SHORTCUT KEYS 1. F2 Edit the selected cell2. F3 After a name has been created F3 will paste names3. F5 Go to a...

More than 100 Keyboard Shortcuts (Microsoft Windows)

1. CTRL+C (Copy) 2. CTRL+X (Cut) 3. CTRL+V (Paste) 4. CTRL+Z (Undo) 5. DELETE (Delete) 6. SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle...