Vehicle.java

package com.guide.c7;

// Try This 7-1
//
// Build a subclass of Vehicle for trucks.
public class Vehicle {
    private int passengers; // number of passengers
    private int fuelcap; // fuel capacity in gallons
    private int mpg; // fuel consumption in miles per gallon

    Vehicle(int p, int f, int m) {
        passengers = p;
        fuelcap = f;
        mpg = m;
    }

    int range() {
        return fuelcap * mpg;
    }

    /**
     * Compute fuel needed for a given distance.
     */
    double fuelneeded(int miles) {
        return (double) miles / mpg;
    }

    // Accessor methods for instance variables.
    int getPassengers() {
        return passengers;
    }

    void setPassengers(int p) {
        passengers = p;
    }

    int getFuelcap() {
        return fuelcap;
    }

    void setFuelcap(int f) {
        fuelcap = f;
    }

    int getMpg() {
        return mpg;
    }

    void setMpg(int m) {
        mpg = m;
    }
}