pr.6 HW

exe. 6.1

class Clock

 import java.util.Scanner;

public class Clock {

    private int hours, minutes, seconds;

    public void tick() {
        seconds++;
        minutes += seconds / 60;
        hours += minutes / 60;
        seconds %= 60;
        minutes %= 60;
        hours %= 24;

    }

    public void show() {

        if (hours < 10)
            System.out.print("0");
        System.out.print(hours + ":");

        if (minutes < 10)
            System.out.print("0");
        System.out.print(minutes + ":");

        if (seconds < 10)
            System.out.print(0);
        System.out.print(seconds);
    }

    public  int reset(){
        hours=00;
        minutes=00;
        seconds=00;
        return hours+minutes+seconds;
    }




    public int getHours() {

        return hours;

    }

    public boolean setHours(int h) {
        if (h < 0 || h >= 24) {
            hours = 0;
            return false;
        } else {
            hours = h;
            return true;
        }
    }

    public int getMinutes() {

        return minutes;

    }

    public boolean setMinutes(int m) {
        if (m < 0 || m >= 60) {
            minutes = 0;
            return false;
        }
        else {
            minutes = m;
            return true;

        }
    }

    public int getSeconds() {

        return seconds;
    }

    public boolean setSeconds(int s) {
        if (s < 0 || s >= 60) {
            seconds = 0;
            return false;
        } else {
            seconds = s;
            return true;
        }
    }
}

tester Clock
import java.util.Scanner;

public class Tester {

    public static void main(String[] args) {
        Scanner s=new Scanner(System.in);
        Clock c1=new Clock();

        boolean res;

        do {
            System.out.print("Enter an hour:");
            res=c1.setHours(s.nextInt());
        } while (res==false);
        do {
            System.out.print("Enter  minutes:");
            res=c1.setMinutes(s.nextInt());
        } while (res==false);

        do {
            System.out.print("Enter seconds:");
            res=c1.setSeconds(s.nextInt());
        } while (res==false);

        c1.show();
        c1.tick();
        c1.tick();
        System.out.println();
        c1.show();
        c1.reset();
        System.out.println();
        c1.show();

    }

}

exe 6.2

class car
import java.util.Scanner;

public class Car {
    private int _kmPH = 100, _carNo = 261278;

    public int getCarNo() {
        return _carNo;
    }

    public int getKmPH() {
        return _kmPH;
    }

    public void setCarNo(int n) {
        _carNo = n;
    }

    public void setKmPH(int k) {
        _kmPH = k;
    }

    public void acce() { // accelerate + 1 kph
        _kmPH++;

    }

    public void slowDown() { // slow down -1kmph
        _kmPH--;
    }

    public void printCarData() {

        System.out.println("Your car no is: " + _carNo + "\nYour car speed is: " + _kmPH + " KPH");

    }

    public int StopCar() {
        _kmPH = 0;
        return _kmPH;
    }
}
 tester car

import java.util.Scanner;

public class Tester {

    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);

        Car car1 = new Car();

        car1.getCarNo();
        car1.getKmPH();

        car1.printCarData();

        System.out.println("How much would you like to increase your car speed?:");
        int x = s.nextInt();
        car1.setKmPH(car1.getKmPH() + x);

        car1.printCarData();

        car1.slowDown();
        car1.slowDown();
        car1.printCarData();

        car1.StopCar();
        car1.printCarData();
    }

}