71 lines
1.5 KiB
Java
71 lines
1.5 KiB
Java
public class SetArtilleriesGeneric<T> {
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private final Object[] _places;
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public int getCount() {
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return _places.length;
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}
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public SetArtilleriesGeneric(int count) {
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_places = new Object[count];
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}
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public int insert(T artillery) {
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return insert(artillery, 0);
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}
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public int insert(T artillery, int position) {
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if (position < 0 || position >= getCount()) {
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return -1;
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}
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if (_places[position] == null) {
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_places[position] = artillery;
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return position;
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}
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int firstNull = -1;
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for (int i = position + 1; i < getCount(); i++)
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{
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if (_places[i] == null)
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{
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firstNull = i;
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break;
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}
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}
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if (firstNull == -1)
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{
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return -1;
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}
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System.arraycopy(_places, position, _places, position + 1, firstNull - position);
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_places[position] = artillery;
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return position;
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}
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@SuppressWarnings("unchecked")
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public T remove(int position) {
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if (position < 0 || position >= getCount())
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{
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return null;
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}
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var result = _places[position];
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_places[position] = null;
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return (T) result;
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}
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@SuppressWarnings("unchecked")
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public T get(int position) {
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if (position < 0 || position >= getCount()) {
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return null;
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}
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return (T) _places[position];
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}
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}
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