Tutorials

Step-by-step tutorials to master Java, Spring, Python, Android and Git concepts. From beginner-friendly guides to advanced techniques.

Spring Boot

Building Your First REST API with Spring Boot

30 min read

Spring Boot

Setting Up Your First Spring Boot Project

8 min read

Spring Boot

Configuration Management in Spring Boot

15 min read

Spring Boot

Prerequisites for Spring Boot Development

11 min read

Java

Java 17 Interview Questions and Answers

16 min read

Spring Boot

Spring, Spring Boot Interview Question Answers

26 min read

Java

Most Popular Java Interview Questions and Answers

38 min read

Spring Boot

Essential MongoDB Optimization Tips for Spring Boot Applications

25 min read

Java

Introduction to Java Collections

3 min read

Java

Hashtable in Java

3 min read

Java

TreeMap in Java

9 min read

Java

IdentityHashMap in Java

5 min read

Java

LinkedHashMap in Java

9 min read

Java

HashMap in Java

12 min read

Java

ArrayDeque in Java

8 min read

Java

DelayQueue in Java

7 min read

Java

PriorityQueue in Java

9 min read

Java

TreeSet in Java

7 min read

Java

LinkedHashSet in Java

5 min read

Java

HashSet in Java

13 min read

Java

Stack in Java

7 min read

Java

Vector in Java

8 min read

Java

CopyOnWriteArrayList in Java

8 min read

Java

LinkedList in Java

17 min read

Java

ArrayList in Java

22 min read

Java

Static Variables, Methods, and Class

9 min read

Spring Boot

Importing CSV Data into PostgreSQL using Spring Boot Batch

37 min read

Spring Boot

Digging into HTTP Clients in Spring: From RestTemplate to HTTP Interface

25 min read

Spring Boot

Using Flyway for Database Migration in Spring Boot

26 min read

Spring Boot

Understanding Spring Boot Project Structure

9 min read