Spring Framework - Spring Expression Language Examples

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import jakarta.annotation.PostConstruct;

@Component
public class MyBean {
    @Value("#{systemProperties['user.home']}")
    private String userHome;

    @Value("#{T(java.lang.Math).random()*1000}")
    private int randomNumber;

    @PostConstruct
    public void postInit() {
        System.out.println("System userHome: " + userHome);
        System.out.println("Random number: " + randomNumber);
    }
}