Java Collections list()方法与示例
集合類(lèi)list()方法 (Collections Class list() method)
list() method is available in java.util package.
list()方法在java.util包中可用。
list() method is used to return an array list that contains all the elements returned by the given Enumeration and the way of storing the elements in an ArrayList in the order as returned by the enumeration.
list()方法用于返回一個(gè)數(shù)組列表,該列表包含給定Enumeration返回的所有元素,以及將這些元素按枚舉返回的順序存儲(chǔ)在ArrayList中的方式。
list() method is a static method, so it is accessible with the class name and if we try to access the method with the class object then we will not get an error.
list()方法是靜態(tài)方法,因此可以使用類(lèi)名進(jìn)行訪問(wèn),如果嘗試使用類(lèi)對(duì)象訪問(wèn)該方法,則不會(huì)收到錯(cuò)誤。
list() method does not throw an exception at the time of conversion of the given Enumeration to an Arraylist.
在將給定的枚舉轉(zhuǎn)換為Arraylist時(shí), list()方法不會(huì)引發(fā)異常。
Syntax:
句法:
public static Arraylist list(Enumeration en);Parameter(s):
參數(shù):
Enumeration en – represents the Enumeration that pass all the elements for the returned ArrayList.
Enumeration en –表示為返回的ArrayList傳遞所有元素的Enumeration。
Return value:
返回值:
The return type of this method is ArrayList, it returns an ArrayList of the given Enumeration.
此方法的返回類(lèi)型為ArrayList ,它返回給定Enumeration的ArrayList。
Example:
例:
// Java program is to demonstrate the example // of ArrayList list() of Collectionsimport java.util.*;public class ListOfCollections {public static void main(String args[]) {// Instantiate an ArrayList and // Stack objectList arr_l = new ArrayList();Stack st = new Stack();// By using push() method is// to add elements in stackst.push(10);st.push(20);st.push(30);st.push(40);st.push(50);// Get elements in an enumeration objectEnumeration en = st.elements();// By using list() method is to // return the array list of the // given enumeration objectarr_l = Collections.list(en);System.out.println("Collections.list(en): " + arr_l);} }Output
輸出量
Collections.list(en): [10, 20, 30, 40, 50]翻譯自: https://www.includehelp.com/java/collections-list-method-with-example.aspx
總結(jié)
以上是生活随笔為你收集整理的Java Collections list()方法与示例的全部?jī)?nèi)容,希望文章能夠幫你解決所遇到的問(wèn)題。
- 上一篇: Java Compiler disabl
- 下一篇: duration java_Java D