69 lines
1.5 KiB
Java
69 lines
1.5 KiB
Java
package ProjectElectricLocomotive;
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import java.util.ArrayList;
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public class SetGeneric<T extends DrawingLocomotive>{
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private ArrayList<T> _places;
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public int Count()
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{
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return _places.size();
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}
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public int maxCount;
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public SetGeneric(int count)
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{
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maxCount = count;
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_places = new ArrayList<>(count);
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}
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public int Insert(T loco)
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{
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return Insert(loco, 0);
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}
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public int Insert(T loco, int position)
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{
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if(position < 0 || position > maxCount)
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return -1;
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else
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{
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_places.add(position, loco);
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return position;
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}
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}
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public T Remove(int position)
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{
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if (position >= Count() || position < 0)
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return null;
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else
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{
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T plane = _places.get(position);
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_places.set(position, null);
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return plane;
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}
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}
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public T Get(int position)
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{
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if (position < 0 || position >= Count()) return null;
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return _places.get(position);
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}
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public void Set(int position, T loco) {
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// Проверка позиции
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// Проверка свободных мест в списке
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if (position < 0 || position >= maxCount || Count() == maxCount) {
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return;
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}
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// Вставка в список по позиции
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_places.set(position, loco);
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}
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public ArrayList<T> GetEnumerator() {
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return _places;
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}
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} |