The returned array will be “safe” in that no references to it are maintained by this list. (In other words, this method must allocate a new array even if this list is backed by an array). The caller is thus f
ToArray() Copies the elements of the ArrayList to a new Object array. ToArray(Type) Copies the elements of the ArrayList to a new array of the specified element type.ToArray() Source: ArrayList.cs Copies the elements of the ArrayList to a new Object array. C# Copy public virtual ...
type Type: System. . :: . .Type The element Type of the destination array to create and copy elements to.Return ValueType: System. . :: . .Array An array of the specified element type containing copies of the elements of the ArrayList....
ArrayList.toArray() 理解 通过源码我们可以看到返回的是Object类型的数组,失去了原有的实际类型,虽然底层存储是具体类型的对象,这也正体现了文档中说的:该方法起到了bridge的作用(This method acts as bridge between array-based and collection-based APIs)。 public Object[] toArray() { return Arrays.copyOf...
ArrayList.ToArray Method發行項 2011/09/07 本文內容 Overload List Version Information See Also Copies objects from the ArrayList collection to a new array. Overload List 展開資料表 NameDescription ArrayList.ToArray () Copies objects from the ArrayList collection to a new Object array. ...
在本教程中,您将学习如何在Java中将ArrayList转换为Array。 Mainly there are two ways to convert ArrayList to array. 主要有两种将ArrayList转换为数组的方法。 Using manual way 使用手动方式 Using toArray() method 使用toArray()方法 Below I have share an example for both the ways. ...
1.ArrayList.toArray() 理解 * 通过源码我们可以看到返回的是Object类型的数组,失去了原有的实际类型,虽然底层存储是具体类型的对象,这也正体现了文档中说的:该方法起到了bridge的作用(This method acts as bridge between array-based and collection-based APIs)。
这个类的 toArray(T[] a) 方法是一个 generic method,它是这样声明和实现的: @SuppressWarnings("unchecked") publicT[] toArray(T[] a) { if (a.length < size) // Make a new array of a's runtime type, but my contents: return (T[]) Arrays.copyOf(elementData, size, a.getClass())...
1.ArrayList.toArray()API ThetoArray()is anoverloadedmethod: publicObject[]toArray();public<T>T[]toArray(T[]a); Thefirst methoddoes not accept any argument andreturns theObject[]. We must iterate the array to find the desired element and cast it to the desired type. ...
/* * Private remove method that skips bounds checking and does not * return the value removed. */ private void fastRemove(int index) { modCount++; int numMoved = size - index - 1; if (numMoved > 0) System.arraycopy(elementData, index+1, elementData, index, numMoved); elementData[...