AtomicReferenceArray weakCompareAndSetRelease() method in Java with Examples
Last Updated :
17 Apr, 2023
The weakCompareAndSetRelease() method of a AtomicReferenceArray class is used to atomically sets the value of the element at index i to newValue to newValue for AtomicReferenceArray if the current value is equal to expectedValue passed as parameter. This method updates the value and ensures that prior loads and stores are not reordered after this access.This method returns true if set a new value to AtomicReference is successful. Syntax:
public final boolean
weakCompareAndSetRelease(int i,
E expectedValue,
E newValue)
Parameters: This method accepts i which is an index of AtomicReferenceArray to perform the operation, expectedValue which is the expected value and newValue which is the new value to set. Return value: This method returns true if successful. Below programs illustrate the weakCompareAndSetRelease() method: Program 1:
Java
import java.util.concurrent.atomic.AtomicReferenceArray;
public class GFG {
public static void main(String[] args)
{
AtomicReferenceArray<Double> ref
= new AtomicReferenceArray<Double>( 5 );
ref.set( 0 , 321.00 );
ref.set( 1 , 123.00 );
ref.set( 2 , 322.00 );
boolean result
= ref.weakCompareAndSetRelease(
1 ,
124.00 ,
234.32 );
System.out.println("Setting new value"
+ " is successful = "
+ result);
System.out.println("Value of index 1 = "
+ ref.get( 1 ));
}
}
|
Output:
Program 2:
Java
import java.util.concurrent.atomic.AtomicReferenceArray;
public class GFG {
public static void main(String[] args)
{
AtomicReferenceArray<String> ref
= new AtomicReferenceArray<String>( 5 );
ref.set( 0 , "GFG");
ref.set( 1 , "JAVA");
boolean result
= ref.weakCompareAndSetVolatile(
0 , "GFG",
"PYTHON");
System.out.println("Setting new value"
+ " is successful = "
+ result);
System.out.println("Value of index 0 = "
+ ref.get( 0 ));
}
}
|
Output:
References: https://docs.oracle.com/javase/10/docs/api/java/util/concurrent/atomic/AtomicReferenceArray.html#weakCompareAndSetRelease(V, V)
Like Article
Suggest improvement
Share your thoughts in the comments
Please Login to comment...