first occurrence of the specified element, or -1 if this list doesn't containlist2.set(2,10);// Replaces the element at the specified position in this list with the specified elementSystem.out.println(list2);list2.remove(2);// Removes the element at the specified position in this list...
1 /** 2 * 将ArrayList中某个索引index位置上的元素A替换成你指定的元素B 3 * Replaces the element at the specified position in this list with 4 * the specified element. 5 * 6 * 7 * @param index 替换的元素的索引 index of the element to replace 8 * @param element 替换后的元素 eleme...
* Replaces the element at the specified position in this list with * the specified element. * 替换index位置的元素 *@paramindex index of the element to replace *@paramelement element to be stored at the specified position *@returnthe element previously at the specified position *@throwsIndexOut...
set(int index, E element) 方法源代码如下: /** * Replaces the element at the specified position in this list with * the specified element. * 用指定的元素替换此list中指定位置的元素 * * @param index index of the element to replace * @param element element to be stored at the specified ...
set(int index, E element) 将列表中指定位置的元素替换为指定元素。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /** * Replaces the element at the specified position in this list with * the specified element. * - 将列表中指定位置的元素替换为指定元素。 * @param index index of the el...
array==.withIndex()== for ((index, value) in array.withIndex()) { println("the element at ${index} is ${value}") } 1. 2. 3. array==.forEach { }== forEach是一个单参数的匿名函数,故用it关键词。 array.forEach { println(it) ...
arraycopy(elementData, index, elementData, index + numNew, numMoved); System.arraycopy(a, 0, elementData, index, numNew); size += numNew; return numNew != 0; } 3. 删除元素 3.1 删除指定索引元素 E remove(int index)。 /** * Removes the element at the specified position in this ...
如果所引是合法的,则调用 elementData(int index) 方法获取指定位置的元素。 2. set(int index, E element) 方法,将index索引处的元素替换成element对象,返回被替换的旧元素 /** * Replaces the element at the specified position in this list with * the specified element. * * @param index index of...
the element at the specified position in this list Throws: IndexOutOfBoundsException - if the index is out of range (index < 0 || index >= size())set public E set(int index, E element) Replaces the element at the specified position in this list with the specified element. Specified ...
Eset(int index,Eelement) Replaces the element at the specified position in this list with the specified element. intsize() Returns the number of elements in this list. Spliterator<E>spliterator() Creates alate-bindingandfail-fastSpliteratorover the elements in this list. ...