What is volatile and example?
What is volatile and example?
Volatile is defined as a substance that quickly evaporates. The definition of volatile is tending to become violent or something that is rapidly evaporating. An example of volatile is a young man who often gets into fist fights. An example of volatile is the quality of the substance acetone.
What is volatile annotation?
@Target([AnnotationTarget. FIELD]) annotation actual class Volatile . Marks the JVM backing field of the annotated property as volatile, meaning that writes to this field are immediately made visible to other threads.
What is volatile rule?
Technically speaking, any write to a volatile field happens before every subsequent read of the same field. This is the volatile variable rule of the Java Memory Model (JMM).
Is volatile safe?
Access to volatile int in Java will be thread-safe. When I say access I mean the unit operation over it, like volatile_var = 10 or int temp = volatile_var (basically write/read with constant values). Volatile keyword in java ensures two things : When reading you always get the value in main memory.
What is the synonym of volatile?
buoyant, capricious, elusive, erratic, fickle, resilient, ticklish, unsettled, unstable, elastic, ephemeral, fugitive, gay, imponderable, light, transient, variable, airy, effervescent, expansive.
What do you mean volatile?
1a : characterized by or subject to rapid or unexpected change a volatile market. b : unable to hold the attention fixed because of an inherent lightness or fickleness of disposition. 2a : tending to erupt into violence : explosive a volatile temper. b : easily aroused volatile suspicions. c : lighthearted, lively.
What does @volatile do Kotlin?
The @Volatile annotation will mark the JVM backing field of the annotated property as volatile. Thus, the writes to this field are immediately made visible to other threads. Moreover, the reads will always see the latest changes.
When should volatile be used?
A variable should be declared volatile whenever its value could change unexpectedly. In practice, only three types of variables could change: Memory-mapped peripheral registers. Global variables modified by an interrupt service routine.
Does volatile remove race?
3 Answers. No it is not sufficient. Volatile is not enough for managing multithread, actually, volatile probably increase gap between expected result and actual result. Accessing variable (isAvailable) and modified it still leads to race condition.
What volatile is actually good for?
Reduces the risk of memory consistency errors. Using volatile variables reduces the risk of memory consistency errors, because any write to a volatile variable establishes a “happens-before” relationship with subsequent reads of that same variable.
