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Deep Copy in Java

Last Updated: 14 October 2025

In Java, Deep Copy (or Deep Cloning) refers to the process of creating a completely independent copy of an object, including all the objects referenced within it. This ens...read more

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Reserved Words in Java

Last Updated: 06 October 2025

In Java, reserved words are predefined identifiers that have a specific meaning in the language. They cannot be used as variable names, method names, class names, or ident...read more

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Types of Java Variables

Last Updated: 03 October 2025

In Java, variables are containers that store data values, such as numbers, text, or Boolean values. Java variables are categorized into different types based on their scop...read more

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Operator Precedence and Associativity in Java

Last Updated: 31 July 2025

Precedence and associative rules are applied when dealing with hybrid equations that involve more than one type of operator. In such cases, these rules determine which par...read more

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Java Fundamentals Coding Practice Problems

Last Updated: 05 March 2025

Understanding Java fundamentals is the first step to becoming a proficient Java programmer. This collection of Java basic coding practice problems covers essential topics ...read more

Practice Questions

Last Updated: 23 July 2025

Java is a high-level, object-oriented programming language. This language is very easy to learn and widely used. It is known for its platform independence, reliability, an...read more

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Difference between Servlet and JSF

Last Updated: 23 July 2025

ServletServlets are Java programs that run on a server and handle client requests to generate dynamic web content. They operate at a lower level within the Java EE framewo...read more

Why Java is Secure?

Last Updated: 23 July 2025

Java, a programming language developed by Sun Microsystems, which is a property of Oracle Corporation now, is considered to be maximally protected from moments of vulnerab...read more

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Introduction to Java Mission Control for JVM Monitoring

Last Updated: 27 May 2024

Java Mission Control (JMC) is a powerful monitoring, diagnostics, and performance analysis tool. Oracle provides this to run the Java applications on the Java Virtual Mach...read more

Java Exercises - Basic to Advanced Java Practice Programs with Solutions

Last Updated: 09 October 2025

This Java exercise collection is designed to deepen your understanding of Java and refine your coding skills. The programs provide hands-on experience in solving real-worl...read more

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Output of Java Program

Java-Object Oriented

Java-Data Types

Java Program to Sort Items By Weight

Last Updated: 29 December 2023

Given two array items and weights which denotes items and their respective weights. Both arrays are of equal length. For every index 'i', items[i] and weights[i] represent...read more

Java-Object Oriented

Java-Class and Object

java-priority-queue

What will happen if i declare main() in java as non-static?

Last Updated: 27 December 2023

main() method in Java acts as an application's entry point. So declaration must read "public static void main(String[] args)" to work properly . What happens if you declar...read more

Java-Collections

carriage return in Java

Last Updated: 24 October 2023

In Java, carriage return is represented as the escape sequence \r and is used to move the cursor to the beginning of the current line without continuing to next line. When...read more

What is Core Java?

Last Updated: 23 July 2025

Java is a programming language that is class-based and object-oriented. It is designed to be general-purpose and aims to have fewer implementation dependencies, and serve...read more

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Typecasting in Java

Last Updated: 12 November 2025

In Java, typecasting is the process of converting one data type to another data type. Types of Type CastingThere are two types of Type Casting in Java:Widening Type Castin...read more

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