Aircraft.java public class Aircraft implements Comparable 3 -} int numEconomySeats; int numFirstClassSeats; String model; public Aircraft (int seats, String model) { } } public Aircraft (int economy, int firstClass, String model) ( } this.numEconomy Seats seats; this.numFirstClassSeats = 0; public int get NumSeats () { } this.model model; } public int getTotalSeats () { return numEconomy Seats + numFirstClassSeats; this.numEconomy Seats economy; this.numFirstClassSeats = firstClass; this.model - model; public int getNumFirstClassSeats () ( } return numEconomySeats; } public String getModel() ( return numFirstClassSeats; public void setModel (String model) return model; this.model-model; public void print () { System.out.println("Model: " + model + "\t Economy Seats: " + numEconomy Seats + "\t First Class Seats: " + numFirstClassSeats); public int compareTo (Aircraft other) ( if (this.numEconomySeats other.numEconomySeats) return this.numFirstClassSeats - other.numFirstClassSeats; return this.numEconomySeats - other.numEconomySeats;