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TTuanhdotnettuanhnet.hashnode.devFeb 5 · 17 min read

Series of Interview Questions for Backend Developers Part 4

Source: Series of Interview Questions for Backend Developers Part 4 1. Question 1: What types of Java class loaders exist and how do they work? At a high level, a class loader is just a piece of Java code whose job is to take a .class file (or...

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PPPranoti Patilprogramming-by-problem-solving-using-c.hashnode.devJan 11 · 1 min read

7.Data Types in C Programming

What Is a Data Type? A data type tells the compiler: The type of data a variable will store The size of memory required The range of values the variable can hold Basic Data Types : 🔹 int Used to store whole numbers int number = 10; printf("%...

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ARAshifur Rahamansqlinsights.hashnode.devDec 8, 2025 · 4 min read

Database Design Guidelines: Naming & Data Types

Introduction The quality of a database is determined by two pillars: clarity (how easy it is to read) and efficiency (how well it performs). Naming Conventions ensure that the database is not a "black box" but a readable map for developers. Data Ty...

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TTuanhdotnettuanhnet.hashnode.devOct 10, 2025 · 5 min read

Why You Encounter NaN Errors in Java: Debugging and Fixing Common OOP Mistakes

Source: Why You Encounter NaN Errors in Java: Debugging and Fixing Common OOP Mistakes 1. What Causes NaN Errors in Java? At its core, NaN in Java represents a value that is undefined or unrepresentable in the floating-point arithmetic system....

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TTuanhdotnettuanhnet.hashnode.devSep 14, 2025 · 5 min read

Multidimensional Arrays in Java

Source: Multidimensional Arrays in Java 1. What Are Multidimensional Arrays in Java? A multidimensional array in Java is essentially an array of arrays. They allow us to store data in a matrix or tabular format, making them ideal for tasks inv...

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TTuanhdotnettuanhnet.hashnode.devSep 13, 2025 · 4 min read

Reverse a LinkedList in Java: Explained with Detailed Analysis

Source: Reverse a LinkedList in Java: Explained with Detailed Analysis 1. Understanding the Problem: What Does Reversing a LinkedList Mean? A LinkedList consists of nodes where each node stores data and a pointer to the next node. Reversing a ...

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TTuanhdotnettuanhnet.hashnode.devAug 31, 2025 · 5 min read

Use Enum in Entity Layers and How to Handle Getter Methods in Spring Boot

Source: Use Enum in Entity Layers and How to Handle Getter Methods in Spring Boot 1. Understanding Enums and Their Role in Entity Layers Enums in Java provide a convenient way to define a fixed set of constants. In a Spring Boot application, e...

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TTuanhdotnettuanhnet.hashnode.devAug 3, 2025 · 5 min read

Secrets to Designing an Effective UserDTO in Spring Boot Applications

Source: Secrets to Designing an Effective UserDTO in Spring Boot Applications 1. What is a UserDTO, and Why is it Important? The UserDTO is a lightweight object used to encapsulate user-related data and transfer it between layers of an applica...

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TTuanhdotnettuanhnet.hashnode.devJul 20, 2025 · 5 min read

Mastering Java Programming with Conversion and Casting

Source: Mastering Java Programming with Conversion and Casting 1. What Are Conversion and Casting? Before diving into examples, let’s clarify the difference between conversion and casting. 1.1 Conversion: Implicit and Explicit Conversi...

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TTuanhdotnettuanhnet.hashnode.devJul 15, 2025 · 5 min read

Building a Binary Tree in Java is Essential: A Step-by-Step Guide with In-Depth Analysis

Source: Building a Binary Tree in Java is Essential: A Step-by-Step Guide with In-Depth Analysis 1. What Is a Binary Tree? A binary tree is a hierarchical data structure where each node has up to two children: the left child and the right chil...

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#datatype

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Trending tags this week

Series of Interview Questions for Backend Developers Part 4

7.Data Types in C Programming

Database Design Guidelines: Naming & Data Types

Why You Encounter NaN Errors in Java: Debugging and Fixing Common OOP Mistakes

Multidimensional Arrays in Java

Reverse a LinkedList in Java: Explained with Detailed Analysis

Use Enum in Entity Layers and How to Handle Getter Methods in Spring Boot

Secrets to Designing an Effective UserDTO in Spring Boot Applications

Mastering Java Programming with Conversion and Casting

Building a Binary Tree in Java is Essential: A Step-by-Step Guide with In-Depth Analysis