vector clone_Java Vector clone（）方法与示例

谁践踏了优雅 2023-03-05 12:49 41阅读 0赞

vector clone

## 向量类clone()方法 **(**Vector Class clone() method**)** ##

*  **clone() method** is available in java.util package.
    
    **clone()方法**在java.util包中可用。
 *  **clone() method** is used to copy or clone or return a shallow copy of this Vector.
    
    **clone()方法**用于复制，克隆或返回此Vector的浅表副本。
 *  **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**是一个非静态方法，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** may throw an exception at the time of cloning an object.
    
    **clone()方法**在克隆对象时可能会引发异常。
    
    **CloneNotSupportedException**: This exception may throw when this Vector class unsupported a Cloneable interface.
    
    **CloneNotSupportedException** ：当此Vector类不支持Cloneable接口时，可能会引发此异常。

**Syntax:**

**句法：**

public Object 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 Object, it returns cloned copy of this Vector.

方法的返回类型为Object ，它返回此Vector的克隆副本。

**Example:**

**例：**

// Java program to demonstrate the example 
    // of Object clone() method of Vector 
    
    import java.util.Vector;
    
    public class CloneOfVector {
        
        public static void main(String[] args) {
        
            // Instantiates a Vector object  with
            // initial capacity of "10"
            Vector < String > v = new Vector < String > (10);
            Vector < String > clone_v = new Vector < String > (10);
    
            // By using add() method is to add the
            // elements in this v
            v.add("C");
            v.add("C++");
            v.add("JAVA");
    
            // Display Vector 
            System.out.println("v: " + v);
    
            // By using clone() method is to
            // clone this vector v
            clone_v = (Vector) v.clone();
    
            // Display Cloned Vector
            System.out.println("v.clone(): " + clone_v);
        }
    }

**Output**

**输出量**

v: [C, C++, JAVA]
    v.clone(): [C, C++, JAVA]

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

vector clone

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