Enter your code herepackage Server;
import java.io.ObjectInputStream.GetField;
import java.sql.Connection;
import java.sql.Date;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList;


public class DBHandler {

	public ArrayList<String> getFromDatabase() {
		Connection c = null;
		Statement stmt = null;
		ArrayList<String> list = new ArrayList<String>();
		int i = 0;
		try {
			Class.forName("org.postgresql.Driver");
			c = DriverManager.getConnection("jdbc:postgresql://localhost:5432/postgres", "postgres", "spanacus");
			c.setAutoCommit(true);
			System.out.println("Opened database successfully");
			stmt = c.createStatement();
			ResultSet rs = stmt.executeQuery("SELECT goods.name FROM \"SDJ3\".Goods");
			while(rs.next()){
				String name = rs.getString("Name");

				list.add(name);
			}

			rs.close();
			stmt.close();
			c.close();
		} catch (Exception e) {
			System.err.println(e.getClass().getName() + ": " + e.getMessage());
			System.exit(0);
		}

		//System.out.println("Operation done successfully");

		return list;

	}
	public static void main(String args[]){
		DBHandler db = new DBHandler();
	}

}