linkedhashset_Java LinkedHashSet clear()方法与示例
linkedhashset
LinkedHashSet類的clear()方法 (LinkedHashSet Class clear() method)
clear() method is available in java.util package.
clear()方法在java.util包中可用。
clear() method is used to clear all of the existing objects in this LinkedHashSet.
clear()方法用于清除此LinkedHashSet中的所有現(xiàn)有對象。
clear() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
clear()方法是一個非靜態(tài)方法,只能通過類對象訪問,如果嘗試使用類名稱訪問該方法,則會收到錯誤消息。
clear() method does not throw an exception at the time of clearing elements.
clear()方法在清除元素時不會引發(fā)異常。
Syntax:
句法:
public void clear();Parameter(s):
參數(shù):
It does not accept any parameter.
它不接受任何參數(shù)。
Return value:
返回值:
The return type of the method is void, it returns nothing.
該方法的返回類型為void ,不返回任何內(nèi)容。
Example:
例:
// Java program to demonstrate the example // of void clear() method of LinkedHashSet import java.util.*;public class ClearOfLinkedHashSet {public static void main(String[] args) {// Instantiates a LinkedHashSet objectHashSet < String > hs = new LinkedHashSet < String > ();// By using add() method is to add// the given object of this// LinkedHashSet hs.add("C");hs.add("C++");hs.add("JAVA");hs.add("PHP");hs.add("SFDC");// Display LinkedHashSetSystem.out.println("LinkedHashSet :" + hs);// By using clear() method is to// remove all of the elements exists// in this LinkedHashSeths.clear();//Display Modified LinkedHashSetSystem.out.println("hs.clear() :" + hs);} }Output
輸出量
LinkedHashSet :[C, C++, JAVA, PHP, SFDC] hs.clear() :[]翻譯自: https://www.includehelp.com/java/linkedhashset-clear-method-with-example.aspx
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