Java AtomicReferenceArray toString()用法及代碼示例

AtomicReferenceArray類的toString()方法用於返回數組當前值的String表示形式，該方法用於將AtomicReferenceArray的內容表示為字符串

用法:

public String toString()

參數：此方法不接受任何內容。

返回值：此方法返回數組當前值的String表示形式。

以下示例程序旨在說明toString()方法：
程序1:

// 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<Integer> ref 
            = new AtomicReferenceArray<Integer>(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); 
    } 
}

輸出：

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

程序2:

// 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<String> ref 
            = new AtomicReferenceArray<String>(names); 
  
        // print the toString() return 
        String toString = ref.toString(); 
        System.out.println( 
            "String representation of"
            + " AtomicReferenceArray:\n"
            + toString); 
    } 
}

輸出：

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

參考文獻： https://docs.oracle.com/javase/10/docs/api/java/util/concurrent/atomic/AtomicReferenceArray.html#toString()

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