78

public class BoundedCounter {

    private int value;
    private int upperLimit;

    public BoundedCounter(int upperLimit) {
        // write code here
        this.value=0;
        this.upperLimit=upperLimit;
    }

    public void next() {
        // write code here
        this.value++;
        if(this.value>this.upperLimit)
            this.value=0;
    }

    public String toString() {
        // write code here
        if (this.value<10)
            return "0"+this.value;
        return ""+this.value;
    }

    public int getValue() {
    // write here code that returns the value
    return this.value;
    }

    public void setValue(int value){
        if (value>0 && value<=this.upperLimit)
        this.value=value;
    }
}
////////////////////////////////////////////////////////////////////

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // write here code to ensure that BoundedCounter works as expected
        // before starting 78.3 remove the extra code and use the skeleton shown
        // in the assignment
        Scanner reader = new Scanner(System.in);
        BoundedCounter seconds = new BoundedCounter(59);
        BoundedCounter minutes = new BoundedCounter(59);
        BoundedCounter hours = new BoundedCounter(23);

        System.out.print("seconds: ");
        int s =reader.nextInt(); // read the initial value of seconds from the user
        System.out.print("minutes: ");
        int m =reader.nextInt();  // read the initial value of minutes from the user
        System.out.print("hours: ");
        int h =reader.nextInt();  // read the initial value of hours from the user

        seconds.setValue(s);
        minutes.setValue(m);
        hours.setValue(h);




        int i = 0;
        while ( i < 121 ) {
            // like in previous but seconds taken into account
            System.out.println(hours.toString()+":"+minutes.toString()+":"+seconds.toString());
            seconds.next();
            if (seconds.getValue()==0)
                minutes.next();
            if(minutes.getValue()==0 && seconds.getValue()==0)
                hours.next();
            i++;

        }
    }
}