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Comprehensive guides and tutorials for modern development
Master Java fundamentals, OOP, Collections, and Stream API for building robust applications.
// Java 8 Streams
List<String> names = Arrays.asList("John", "Jane");
names.stream()
.filter(n -> n.startsWith("J"))
.map(String::toUpperCase)
.forEach(System.out::println);
Build production-ready REST APIs with Spring Boot, JPA, and Security configurations.
@RestController
@RequestMapping("/api")
public class UserController {
@GetMapping("/users")
public List<User> getAll() {
return userService.findAll();
}
}
Design efficient databases with proper normalization, indexes, and optimized queries.
SELECT u.name, COUNT(o.id) as orders FROM users u LEFT JOIN orders o ON u.id = o.user_id GROUP BY u.id HAVING orders > 5 ORDER BY orders DESC;
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Real-time metrics and performance tracking
Essential tools for modern development workflow
Essential commands at your fingertips
mvn clean install mvn spring-boot:run mvn test
git add . && git commit -m "msg" git push origin main git pull origin main
docker build -t app . docker run -p 8080:8080 app docker-compose up -d
SELECT * FROM users; INSERT INTO users VALUES(...); UPDATE users SET col=val;
