Java AtomicReferenceArray setPlain()用法及代碼示例

AtomicReferenceArray類的setPlain()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。此方法使用設置的內存語義來設置值，就好像該變量被聲明為非易失性且非最終值一樣。

用法:

public final void setPlain(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setPlain()方法：
程序1:

// Java program to demonstrate 
// setPlain() 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.setPlain(0, 9876); 
        ref.setPlain(1, 1234); 
        ref.setPlain(2, 3212); 
  
        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 
// setPlain() method 
  
import java.util.concurrent.atomic.*; 
  
public class GFG { 
  
    public static void main(String[] args) 
    { 
  
        // create an atomic reference object 
        AtomicReferenceArray<String> ref 
            = new AtomicReferenceArray<String>(5); 
  
        // set some value 
        ref.setPlain(0, "JS"); 
        ref.setPlain(1, "EMBER"); 
        ref.setPlain(2, "REACT"); 
        ref.setPlain(3, "C++"); 
        ref.setPlain(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#setPlain(int, E)

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