Java AtomicReferenceArray setRelease()用法及代碼示例

AtomicReferenceArray類的setRelease()方法用於將索引i處的元素值設置為newValue。索引i和newValue都作為參數傳遞給該方法。此方法使用VarHandle.setRelease(java.lang.Object…)指定的具有 memory 效果的值進行設置。此方法具有與memory_order_release排序兼容的內存排序效果。

用法:

public final void setRelease(int i, E newValue)

參數：此方法接受：

i這是執行操作的AtomicReferenceArray的索引，
newValue 這是要設置的新值。

返回值：此方法不返回任何內容。

以下示例程序旨在說明setRelease()方法：
程序1:

// Java program to demonstrate 
// setRelease() 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 and print 
        ref.setRelease(0, 1324); 
        ref.setRelease(1, 144); 
        ref.setRelease(2, 322); 
  
        System.out.println( 
            "Value of index 0 = "
            + ref.get(0)); 
        System.out.println( 
            "Value of index 1 = "
            + ref.get(1)); 
        System.out.println( 
            "Value of index 2 = "
            + ref.get(2)); 
    } 
}

輸出：

程序2:

// Java program to demonstrate 
// setRelease() method 
  
import java.util.concurrent.atomic.*; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
  
        // create an atomic reference object.c 
        AtomicReferenceArray<String> ref 
            = new AtomicReferenceArray<String>(5); 
  
        // set some value 
        ref.setRelease(0, "C"); 
        ref.setRelease(1, "PYTHON"); 
        ref.setRelease(2, "TS"); 
        ref.setRelease(3, "C++"); 
        ref.setRelease(4, "C"); 
  
        // print 
        for (int i = 0; i < 5; i++) { 
            System.out.println(ref.get(i)); 
        } 
    } 
}

輸出：

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

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