AtomicReference weakCompareAndSetRelease() method in Java with Examples
The weakCompareAndSetRelease() method of a AtomicReference class is used to atomically sets the value to newValue for AtomicReference 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(V expectedValue,
V newValue)
Parameters: This method accepts 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.AtomicReference;
public class GFG {
public static void main(String[] args)
{
AtomicReference<Float> ref
= new AtomicReference<Float>();
ref.set( 12 .3400f);
boolean result
= ref.weakCompareAndSetRelease(
1 .2f,
234 .32f);
System.out.println("Setting new value"
+ " is successful = "
+ result);
System.out.println("Value = " + ref.get());
}
}
|
Output:
Program 2:
Java
import java.util.concurrent.atomic.AtomicReference;
public class GFG {
public static void main(String[] args)
{
AtomicReference<String> ref
= new AtomicReference<String>();
ref.set("WELCOME TO GFG");
boolean result
= ref.weakCompareAndSetRelease(
"WELCOME TO GFG",
"WELCOME TO GEEKS FOR GEEKS");
System.out.println("Setting new value"
+ " is successful = " + result);
System.out.println("Value = " + ref.get());
}
}
|
Output:
References: https://docs.oracle.com/javase/10/docs/api/java/util/concurrent/atomic/AtomicReference.html#weakCompareAndSetRelease(V, V)
Last Updated :
17 Apr, 2023
Like Article
Save Article
Share your thoughts in the comments
Please Login to comment...