LinkedList對象clone()方法 (LinkedList Object clone() method)

• This method is available in package java.util.Collection and here, Collection is an interface.

  該方法在java.util.Collection包中可用，在這里， Collection是一個接口。

• This method is used to create a duplicate or shallow copy of the Linked list.

  此方法用于創建鏈接列表的重復副本或淺表副本。

• In this method, we required two objects of the same type and one object will be copied in another object.

  在這種方法中，我們需要兩個相同類型的對象，并將一個對象復制到另一個對象中。

• This method does not return an exception.

  此方法不返回異常。

Syntax:

句法：

Object clone(){}

Parameter(s):

參數：

This method does not accept any parameter.

此方法不接受任何參數。

Return value:

返回值：

The return type of this method is Object that means this method returns an instance of the linked list after execution.

該方法的返回類型為Object ，這意味著該方法在執行后返回鏈表的實例。

Java程序，演示LinkedList clone()方法的示例 (Java program to demonstrate example of LinkedList clone() method)

import java.util.LinkedList;public class LinkList {public static void main(String[] args) {// Create an object of linked list 1LinkedList l1 = new LinkedList();// Create an object of linked list 2LinkedList l2 = new LinkedList();// use add() method to add few elements in the linked list 1 l1.add(10);l1.add(20);l1.add(30);l1.add(40);l1.add(50);// Linked list 1 OutputSystem.out.println("The Linked list 1 is :" + l1);// With the help of clone() we will copy of // all the elements of linked list 1 in other // linked list 2 without inserting manuallyl2 = (LinkedList) l1.clone();// Linked list 2 OutputSystem.out.println("The Linked List 2 is:" + l2);} }

Output

輸出量

D:\Programs>javac LinkList.javaD:\Programs>java LinkList The Linked list 1 is :[10, 20, 30, 40, 50] The Linked List 2 is:[10, 20, 30, 40, 50]

翻譯自: https://www.includehelp.com/java/linkedlist-object-clone-method-with-example.aspx

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