Limbaje de programare
Limbaj de programare și runtime de nivel enterprise pentru construirea de aplicații multiplatformă
Write once, run anywhere via JVM bytecode
Robust, scalable, with comprehensive libraries and frameworks
Compile-time type safety prevents common errors
Garbage collection handles memory automatically
Spring, Hibernate, Maven, Gradle, and thousands of libraries
Code written decades ago still runs on modern JVMs
# OpenJDK 17 (LTS)
sudo apt update
sudo apt install openjdk-17-jdk -y
java -version
# Set JAVA_HOME
echo 'export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64' >> ~/.bashrc
source ~/.bashrc// HelloWorld.java
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}javac HelloWorld.java
java HelloWorld@SpringBootApplication
@RestController
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
@GetMapping("/")
public String hello() {
return "Hello, World!";
}
}<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>3.2.0</version>
</dependency>
</dependencies>mvn spring-boot:runÎncepe în câteva minute cu procesul nostru simplu de implementare VPS
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