java 方法示例_Java ArrayDeque size（）方法与示例

缺乏、安全感 2023-03-05 13:28 5阅读 0赞

java 方法 示例

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

*  **size() method** is available in java.lang package.
    
    **size()方法**在java.lang包中可用。
 *  **size() method** is used to return the size (No. of elements) stored in this deque.
    
    **size()方法**用于返回存储在此双端队列中的大小(元素数)。
 *  **size() 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.
    
    **size()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。
 *  **size() method** does not throw an exception at the time of returning the size of this deque.
    
    返回此双端队列的大小时， **size()方法**不会引发异常。

**Syntax:**

**句法：**

public int size();

**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 this method is int, it returns the number of elements in this deque.

此方法的返回类型为int ，它返回此双端队列的元素数。

**Example:**

**例：**

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

**Output**

**输出量**

d_queue : 
    ArrayDeque Elements = [C, C++, Java, Php, DotNet]
    
    d_queue.size() = 5

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

java 方法 示例

[https_www.includehelp.com_java_arraydeque-size-method-with-example.aspx]: https://www.includehelp.com/java/arraydeque-size-method-with-example.aspx