Java中的 AtomicReferenceArray toString() 方法及示例

AtomicReferenceArray类的toString()方法用于返回数组当前值的 String 表示。该方法用于将 AtomicReferenceArray 的内容表示为字符串

句法：

public String toString()

参数：此方法不接受任何内容。

返回值：此方法返回数组当前值的字符串表示形式。

下面的程序说明了 toString() 方法：
方案一：

// Java program to demonstrate
// toString() 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);
  
        // set some value
        ref.set(0, 234);
        ref.set(1, 134);
        ref.set(2, 325);
  
        // print the toString() return
        String toString = ref.toString();
        System.out.println(
            "String representation of"
            + " AtomicReferenceArray:\n"
            + toString);
    }
}

输出：

String representation of AtomicReferenceArray:
[234, 134, 325, null, null]

方案二：

// Java program to demonstrate
// toString() 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 toString() return
        String toString = ref.toString();
        System.out.println(
            "String representation of"
            + " AtomicReferenceArray:\n"
            + toString);
    }
}

输出：

String representation of AtomicReferenceArray:
[AMAN, AMAR, SURAJ]

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