分类：toArray内置函数

2021
09-24

Java 数组内置函数toArray详解

java.util.List中的toArray函数java.util.List<E>@NotNullpublicabstract<T>T[]toArray(@NotNullT[]a)Returnsanarraycontainingalloftheelementsinthislistinpropersequence(fromfirsttolastelement);theruntimetypeofthereturnedarrayisthatofthespecifiedarray.Ifthelistfitsinthespecifiedarray,itisreturnedtherein.Otherwise,anewarrayisallocatedwiththeruntim... 继续阅读 >