java clone方法_Java ArrayDeque clone（）方法与示例

╰半橙微兮° 2023-03-05 15:51 7阅读 0赞

java clone方法

## ArrayDeque类clone()方法 **(**ArrayDeque Class clone() method**)** ##

*  **clone() Method** is available in java.lang package.
    
    **clone()方法**在java.lang包中可用。
 *  **clone() Method** is used to returns a copy or clone of this deque.
    
    **clone()方法**用于返回此双端队列的副本或克隆。
 *  **clone() 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.
    
    **clone()方法**是一种非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。
 *  **clone() Method** does not throw an exception at the time of cloning all of the elements from deque.
    
    从双端队列克隆所有元素时， **clone()方法**不会引发异常。

**Syntax:**

**句法：**

public ArrayDeque<T> clone();

**Parameter(s):**

**参数：**

*  It does not accept any parameter.
    
    它不接受任何参数。

**Return value:**

**返回值：**

The return type of the method is ArrayDeque<T>, it returns cloned array deque.

该方法的返回类型为ArrayDeque <T> ，它返回克隆的数组双端队列。

**Example:**

**例：**

// Java program to demonstrate the example 
    // of ArrayDeque<T> clone() method of ArrayDeque 
    
    import java.util.*;
    
    public class CloneOfArrayDeque {
        
        public static void main(String[] args) {
        
            // Creating an ArrayDeque with initial capacity of
            // storing elements
            ArrayDeque < String > d_queue1 = new ArrayDeque < String > (10);
    
            // By using add() method to add elements
            // in ArrayDeque
            d_queue1.add("C");
            d_queue1.add("C++");
            d_queue1.add("Java");
            d_queue1.add("Php");
            d_queue1.add("DotNet");
    
            // Display Deque Elements
            System.out.println("d_queue1 : ");
            System.out.println("ArrayDeque Elements = " + d_queue1);
    
            // By using clone() method to clone the elements
            // of d_queue1 to d_queue2
            ArrayDeque < String > d_queue2 = d_queue1.clone();
    
            System.out.println();
    
            // Display Deque Elements
            System.out.println("d_queue2 = d_queue1.clone(): ");
            System.out.println("ArrayDeque = " + d_queue2);
        }
    }

**Output**

**输出量**

d_queue1 : 
    ArrayDeque Elements = [C, C++, Java, Php, DotNet]
    
    d_queue2 = d_queue1.clone(): 
    ArrayDeque = [C, C++, Java, Php, DotNet]

> 翻译自: [https://www.includehelp.com/java/arraydeque-clone-method-with-example.aspx][https_www.includehelp.com_java_arraydeque-clone-method-with-example.aspx]

java clone方法

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