71 lines
2.1 KiB
Java
71 lines
2.1 KiB
Java
/*
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* Copyright (C) 2021 eichehome
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package utils;
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/**
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*
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* @author eichehome
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* @param <T> Type des Arrays, mit dem gearbeitet wird.
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*/
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public class ArrayHelper<T> {
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public T[] push(T element, T[] array) {
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if (array != null) {
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T[] temp = new T[1 + array.length];
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for (int i = 0; i < array.length; i++) {
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temp[i] = array[i];
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}
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temp[temp.length - 1] = element;//Letzter eintrag
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array = temp;
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} else {
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T[] temp = new T[1];
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temp[temp.length - 1] = element;
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array = temp;
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}
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return array;
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}
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public T pop(T element, T[] array) throws IllegalArgumentException {
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if (array != null) {
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int index = getIndex(element, array);
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T result = array[index];
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T[] temp;
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temp = new T[array.length - 2];
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for (int i = 0; i < index; i++) {
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temp[i] = array[i];
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}
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for (int i = ++index; i < temp.length; i++) {
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temp[i - 1] = array[i];
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}
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return result;
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} else {
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throw new IllegalArgumentException("Element not found");
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}
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}
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int getIndex(T match, T[] array) {
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int result = -1;
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for (int i = 0; i < array.length; i++) {
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if (array[i].equals(match)) {
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result = i;
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break;
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}
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}
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return result;
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}
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}
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