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| public class Route {
public static void main(String[] args) {
BaseStop list = new BaseStop();
list.addStop("Победа", 10, 12);
list.addStop("Красная", 9, 53);
list.addStop("Пушкина", 14, 22);
list.addStop("Лахта", 11, 24);
list.addStop("Гоголя", 8, 34);
list.addStop("Соборная", 15, 58);
System.out.println(list.getLengthRoute());
System.out.println(list.getTimeRoute());
}
}
class BaseStop {
private Stop first;
private Stop last;
private int size;
private boolean checkTime(int hour, int minute) {
return hour >= 0 && hour <= 23 && minute >= 0 && minute <= 59;
}
private boolean contains(Stop stop) {
boolean result = false;
if (this.size != 0 && stop != null) {
for (Stop x = first; x != null; x = x.next) {
if (x.equals(stop)) {
result = true;
break;
}
}
}
return result;
}
public String getLengthRoute() {
String countStop = String.format("Кол-во остановок %d.%s", this.size, System.lineSeparator());
StringBuilder sb = new StringBuilder(countStop);
if (size != 0) {
sb.append("Путь:").append(System.lineSeparator());
for (Stop x = first; x != null; x = x.next) {
sb.append(x).append(System.lineSeparator());
}
}
return sb.toString();
}
public String getTimeRoute() {
int seconds = first != null && last != null ? last.getMinutes() - first.getMinutes() : 0;
return String.format("Весь путь займёт: %d ч. %d мин.;", seconds / 60, seconds % 60);
}
private int getIndexWrite(Stop stop) {
int result = -1;
if (stop != null && size != 0) {
result = 0;
for (Stop x = first; x != null; x = x.next) {
if (stop.getMinutes() < x.getMinutes()) {
break;
}
result++;
}
}
return result;
}
private void addStopByIndex(Stop stop, int index) {
if (stop != null) {
if (index == size) {
last.next = stop;
stop.prev = last;
last = stop;
size++;
} else if (index == 0) {
first.prev = stop;
stop.next = first;
first = stop;
size++;
} else if (index > 0 && index < size) {
int i = 0;
for (Stop x = first; x != null; x = x.next) {
if (index == i) {
Stop temp = x.prev;
temp.next = stop;
stop.prev = temp;
stop.next = x;
x.prev = stop;
size++;
break;
}
i++;
}
}
}
}
public boolean addStop(String name, int hour, int minute) {
boolean result = false;
if (name != null && checkTime(hour, minute)) {
Stop stop = new Stop(null, null, name, hour, minute);
if (!contains(stop)) {
if (first == null) {
first = stop;
this.size++;
} else if (last == null) {
if (stop.getMinutes() > first.getMinutes()) {
last = stop;
last.prev = first;
first.next = last;
} else {
last = first;
first = stop;
last.prev = stop;
stop.next = last;
}
this.size++;
} else {
this.addStopByIndex(stop, getIndexWrite(stop));
}
result = true;
}
}
return result;
}
private class Stop {
private Stop prev;
private Stop next;
private String name;
private int hour;
private int minute;
public Stop(Stop prev, Stop next, String name, int hour, int minute) {
this.prev = prev;
this.next = next;
this.name = name;
this.hour = hour;
this.minute = minute;
}
public int getMinutes() {
return hour * 60 + minute;
}
@Override
public String toString() {
return String.format("Название: %s; Время прибытия: %d ч. %d мин.;", this.name, this.hour, this.minute);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Stop stop = (Stop) o;
if (hour != stop.hour) return false;
if (minute != stop.minute) return false;
return name != null ? name.equals(stop.name) : stop.name == null;
}
}
} |
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