first

lab7.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
+

src/Airplane.java

+import java.util.ArrayList ;
+
+public class Airplane {
+
+    private String type ;
+    private ArrayList<seat> seats ;
+    private ArrayList<seat> freeSeats ;
+
+    public Airplane(String type , ArrayList<seat> seats){
+        this.type = type ;
+        this.seats = seats ;
+    }
+
+    public ArrayList<seat> getSeats(){
+        return seats ;
+    }
+
+    public ArrayList<seat> getFreeSeats(){
+        return freeSeats ;
+    }
+
+    public void reserveSeat(seat seat){
+
+    }
+
+}

src/Customer.java

+public class Customer {
+
+    private String name ;
+    private String lastname ;
+    private int ID ;
+
+    public Customer(String name , String lastname , int ID){
+        this.name = name ;
+        this.lastname = lastname ;
+        this.ID = ID ;
+    }
+
+    public void reserve(Flight flight , Seat seat , Boolean hasFood , int weight){
+
+
+    }
+
+}

src/Flight.java

+public class Flight {
+
+    private Airplane airplane ;
+    private int ID ;
+    private String source ;
+    private String dest ;
+    private String company ;
+
+
+    public Flight(int ID , String source , String dest , String company){
+        this.ID = ID ;
+        this.source = source ;
+        this.dest = dest ;
+        this.company = company ;
+    }
+
+    public int getID(){
+        return getID() ;
+    }
+
+    public String getSource(){
+        return source ;
+    }
+
+    public String getDest(){
+        return dest ;
+    }
+
+    public Airplane getAirplane(){
+        return airplane ;
+    }
+
+    public String getCompany(){
+        return company ;
+    }
+
+
+}

src/Seat.java

+public class Seat {
+
+    private String type ;
+    private Customer customer ;
+    private int num ;
+
+    public Seat(int num , String type){
+        this.num = num ;
+        this.type = type ;
+    }
+
+    public Customer getCustomer() {
+        return customer;
+    }
+
+    public void setCustomer(Customer customer) {
+        this.customer = customer;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public int getNum() {
+        return num;
+    }
+
+}

src/System.java

+import java.util.ArrayList ;
+
+
+public class System {
+    private ArrayList<Flight> flights ;
+
+
+
+}

src/Ticket.java

+public class Ticket {
+}