Java中的 AtomicReferenceArray length() 方法及示例

AtomicReferenceArray类的length()方法用于返回此 AtomicReferenceArray 的长度。

句法：

public final int length()

参数：此方法不接受任何内容。

返回值：此方法返回表示此 AtomicReferenceArray 长度的整数。

下面的程序说明了 length() 方法：
方案一：

// Java program to demonstrate
// AtomicReferenceArray.length() method
  
import java.util.concurrent.atomic.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // create an atomic reference object.
        AtomicReferenceArray ref
            = new AtomicReferenceArray(5);
  
        // print the length
        int length = ref.length();
        System.out.println(
            "length of AtomicReferenceArray = "
            + length);
    }
}

输出：

length of AtomicReferenceArray = 5

方案二：

// Java program to demonstrate
// AtomicReferenceArray.length() method
  
import java.util.concurrent.atomic.*;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // create a array of Strings
        String[] names
            = { "AMAN", "AMAR", "SURAJ" };
  
        // create an atomic reference object.
        AtomicReferenceArray ref
            = new AtomicReferenceArray(names);
  
        // print the length
        int length = ref.length();
        System.out.println(
            "length of AtomicReferenceArray = "
            + length);
    }
}

输出：

length of AtomicReferenceArray = 3

参考资料： https: Java/util/concurrent/atomic/AtomicReferenceArray.html#length()