myAL.Remove( "lazy" ); // Displays the current state of the ArrayList. Console.WriteLine( "After removing \"lazy\":" ); PrintValues( myAL ); // Removes the element at index 5. myAL.RemoveAt( 5 ); // Displays the current state of the ArrayList. Console.WriteLine( "After removing...
publicE remove(intindex) { rangeCheck(index);//先判断数组是否越界 modCount++; E oldValue=elementData(index); //处理数据intnumMoved = size - index - 1; //remove方法是将原数组的指定下标位置后面的值复制好然后再覆盖原有的指定下标位置,再将最后的一个置为空方便gc 调用的system.arraytcopy publi...
传入index和元素,先判断index在数组中是否存在,然后判断扩容,然后将原数组复制一份,在中间index位置加入element。 public void add(int index, E element) { rangeCheckForAdd(index); ensureCapacityInternal(size + 1); //复制一个数组,把index后得一段整体后移一位。 System.arraycopy(elementData, index, elem...
public static void remove4(ArrayList<String> list, String elem) { // 方法四:迭代器,使用ArrayList的remove()方法删除,产生并发修改异常 ConcurrentModificationException Iterator iterator = list.iterator(); while (iterator.hasNext()) { if(iterator.next().equals(elem)) { list.remove(iterator.next())...
1. Syntax of remove(), removeAll() and removeIf() Methods Theremove()method is overloaded. E remove(int index) boolean remove(E element)) Theremove(int index)– removes the element at the specified index and returns the removed item. ...
arr.remove("d"); } }); } 虽然均为删除,但是简化版的for循环还有函数式循环下就不能删除呢?往下看... 三.普通删除做了什么 这是ArrayList的remove源码: public E remove(intindex) { rangeCheck(index); modCount++; E oldValue = elementData(index); ...
* @return the element that was removed from the list * @throws IndexOutOfBoundsException @inheritDoc */ public E remove(int index) rangeCheck(index); modCount++; E oldValue = elementData(index); int numMoved = size - index - 1; ...
remove(1); System.out.println("Removed element: " + removedElement); System.out.println("Updated list: " + list); 输出结果: 代码语言:txt 复制 Removed element: Banana Updated list: [Apple, Orange] remove(Object obj):根据元素值删除第一个匹配的元素。如果ArrayList中存在多个相同的元素,只有第...
Object remove(int index)– removes the element at the specified position in this list. Shifts any subsequent elements to the left. Returns the removed element from the list. ThrowsIndexOutOfBoundsExceptionif the argument index is invalid.
remove 代码语言:javascript 代码运行次数:0 运行 AI代码解释 //去掉该集合中的指定元素 open fun remove(element: E): Boolean removeAt 代码语言:javascript 代码运行次数:0 运行 AI代码解释 //去掉该集合指定位置的元素 abstract fun removeAt(index: Int): E removeRange 代码语言:javascript 代码运行次数:0 ...