How do you use VarHandle with a simple code example?

VarHandle is a powerful feature introduced in Java 9 that provides a mechanism to access variables in a more flexible and low-level way than reflection. It enables you to perform atomic operations on variables without the overhead of synchronization, making it useful for concurrent programming.

Example of Using VarHandle

import java.lang.invoke.MethodHandles; import java.lang.invoke.VarHandle; public class VarHandleExample { private static int counter = 0; public static void main(String[] args) throws Throwable { VarHandle varHandle = MethodHandles.lookup().findStaticVarHandle(VarHandleExample.class, "counter", int.class); // Increment the counter atomically varHandle.getAndAdd(1); System.out.println("Counter: " + varHandle.get()); } }

VarHandle Java Concurrent Programming Java 9 Atomic Operations Reflection

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