IdentityHashMap類values()方法 (IdentityHashMap Class values() method)

• values() method is available in java.util package.

  values()方法在java.util包中可用。

• values() method is used to return the values exist in this IdentityHashMap to be viewed in a Collection.

  values()方法用于返回此IdentityHashMap中存在的值，以在Collection中進行查看。

• values() 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.

  values()方法是一種非靜態(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。

• values() method does not throw an exception at the time of getting values in a Collection.

  在Collection中獲取值時， values()方法不會引發(fā)異常。

Syntax:

句法：

public Collection values();

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 Collection, it returns the Collection view of all the values exists in this IdentityHashMap.

方法的返回類型為Collection ，它返回此IdentityHashMap中存在的所有值的Collection視圖。

Example:

例：

// Java program to demonstrate the example // of Collection values() method of IdentityHashMap import java.util.*;public class ValuesOfIdentityHashMap {public static void main(String[] args) {// Instantiates a IdentityHashMap objectMap < Integer, String > map = new IdentityHashMap < Integer, String > ();// By using put() method is to add// key-value pairs in a IdentityHashMapmap.put(10, "C");map.put(20, "C++");map.put(50, "JAVA");map.put(40, "PHP");map.put(30, "SFDC");// Display IdentityHashMapSystem.out.println("IdentityHashMap: " + map);// By using values() method is to return// the values exists in this IdentityHashMap// to be viewed in a collectionCollection co = map.values();// Display collectionSystem.out.print("map.values(): " + co);} }

Output

輸出量

IdentityHashMap: {20=C++, 40=PHP, 50=JAVA, 30=SFDC, 10=C} map.values(): [C++, PHP, JAVA, SFDC, C]

翻譯自: https://www.includehelp.com/java/identityhashmap-values-method-with-example.aspx

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