Java Dictionary elements()方法与示例
字典類的elements()方法 (Dictionary Class elements() method)
elements() method is available in java.util package.
elements()方法在java.util包中可用。
elements() method is used to get the elements of an Enumeration in this dictionary.
elements()方法用于獲取此字典中Enumeration的元素。
elements() method is a non-static method, it is accessible with the class object and if we try to access the method with the class name then we will get an error.
elements()方法是一種非靜態方法,可通過類對象訪問,如果嘗試使用類名稱訪問該方法,則會收到錯誤消息。
elements() method does not throw an exception at the time of returning Enumeration elements.
返回Enumeration元素時, elements()方法不會引發異常。
Syntax:
句法:
public abstract Enumeration elements();Parameter(s):
參數:
It does not accept any parameter.
它不接受任何參數。
Return value:
返回值:
The return type of this method is Enumeration, it returns values of an Enumeration.
此方法的返回類型為Enumeration ,它返回Enumeration的值。
Example:
例:
// Java program is to demonstrate the example of // elements() method of Dictionaryimport java.util.*;public class ElementsOfDictionary {public static void main(String[] args) {// Instantiate a Hashtable objectDictionary dict = new Hashtable();// By using put() method is to// add an elements in Hashtable dict.put(1, "C");dict.put(2, "C++");dict.put(3, "JAVA");dict.put(4, "PHP");dict.put(5, "SFDC");// Display Hashtable elements in the form// of an enumeration for (Enumeration en = dict.elements(); en.hasMoreElements();) {System.out.println(en.nextElement());}} }Output
輸出量
SFDC PHP JAVA C++ C翻譯自: https://www.includehelp.com/java/dictionary-elements-method-with-example.aspx
總結
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