65 lines
1.6 KiB
Java
65 lines
1.6 KiB
Java
package Trolleybus;
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import java.util.List;
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import java.util.ArrayList;
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public class SetGeneric <T extends Object>{
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private final List<T> _places;
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public int Count;
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private final int _maxCount;
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public SetGeneric(int count){
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_places = new ArrayList<>();
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_maxCount = count;
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Count = 0;
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}
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//Вставка в начало
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public int Insert(T bus){
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return Insert(bus, 0);
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}
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//Вставка на какую-то позицию
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public int Insert(T bus, int position)
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{
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if (position >= _maxCount || position < 0)
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{
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//позиция неверная, значит вставить нельзя
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return -1;
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}
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if (Count + 1 <= _maxCount) {
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_places.add(position, bus);
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Count++;
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return position;
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}
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// Места нет
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return -1;
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}
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public boolean Remove(int position)
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{
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if (position >= Count || position < 0)
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{
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return false;
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}
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_places.remove(position);
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Count--;
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return true;
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}
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public T Get(int position)
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{
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if (position >= Count || position < 0)
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{
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return null;
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}
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return (T)_places.get(position);
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}
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public ArrayList<T> GetBuses(int maxBus){
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ArrayList<T> toReturn = new ArrayList<>();
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for (int i = 0; i < _maxCount; i++) {
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toReturn.add(_places.get(i));
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if (i == maxBus) {
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return toReturn;
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}
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}
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return toReturn;
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}
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}
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