How is data organized and managed in Java?

In Java, working with data is organized through various data types and structures, as well as objects and collections. The main ways to work with data include:

1. Primitive data types: int, double, boolean, etc. They store simple values.

2. Objects and classes: data can be organized as objects with fields and methods, allowing modeling of complex structures.

3. Collections: Java provides standard collections (List, Set, Map, etc.) from the java.util package for storing and managing groups of objects.

4. Working with files and streams: classes from java.io and java.nio are used for reading and writing data.

5. Databases: through JDBC, you can connect to DBMS and execute queries to work with data.

Example of using a List collection to store strings:

import java.util.ArrayList;
import java.util.List;

public class DataExample {
    public static void main(String[] args) {
        List<String> names = new ArrayList<>();
        names.add("Ivan");
        names.add("Maria");
        names.add("Petr");

        for (String name : names) {
            System.out.println(name);
        }
    }
}

Thus, working with data in Java is based on using types, objects, and standard libraries for storing, processing, and transmitting data.