a) Design the child class ExtClock from the class Clock by adding a data member to store the time zone. Add necessary methods and constructors to make the class functional. Also write the definitions of the methods and constructors. Set timezone Get timezone Set time Get time Print time Equals Make copy b) Write a test program to test your new class.
Please solve this using java and attach output screenshot and implementation screenshot.
Using this clock class please:
public class Clock
{
private int hr;
private int min;
private int sec;
public Clock()
{
setTime(0, 0, 0);
}
public Clock(int hours, int minutes, int seconds)
{
setTime(hours, minutes, seconds);
}
public void setTime(int hours, int minutes, int seconds) {
if (0 <= hours && hours < 24)
hr = hours;
else hr = 0;
if (0 <= minutes && minutes < 60)
min = minutes;
else min = 0;
if(0 <= seconds && seconds < 60)
sec = seconds;
else sec = 0;
}
public int getHours()
{
return hr;
}
public int getMinutes()
{
return min;
}
public int getSeconds()
{
return sec;
}
public void printTime()
{
if (hr < 10)
System.out.print("0");
System.out.print(hr + ":");
if (min < 10)
System.out.print("0");
System.out.print(min + ":");
if (sec < 10)
System.out.print("0");
System.out.print(sec);
}
public void incrementSeconds()
{
sec++; if (sec > 59)
sec = 0;
incrementMinutes();
}
}
public void incremenMinutes()
{
min++;
if (min > 59) {
min = 0; incrementHtours();
} }
public void incrementHours() {
hr++; if(hr > 23) hr = 0;
}
public boolean equals(Clock otherClock)
{
return (hr == otherClock.hr && min == otherClock.min && sec == otherClock.sec);
}
public void makeCopy(Clock otherClock) {
hr = otherClock.hr;
min = otherClock.min;
sec = otherClock.sec;
}
public Clock getCopy() {
Clock temp = new Clock();
temp.hr = hr;
temp.min = min;
temp.sec = sec;
return temp;
} }
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