What is transient and volatile?
The volatile keyword flushes the changes directly to the main memory instead of the CPU cache. On the other hand, the transient keyword is used during serialization. Fields that are marked as transient can not be part of the serialization and deserialization.
What are volatile variables?
A volatile variable is a variable that is marked or cast with the keyword “volatile” so that it is established that the variable can be changed by some outside factor, such as the operating system or other software.
What does volatile do?
volatile is a qualifier that is applied to a variable when it is declared. It tells the compiler that the value of the variable may change at any time-without any action being taken by the code the compiler finds nearby.
What is difference between volatile and constant?
The const modifier means that this code cannot change the value of the variable, but that does not mean that the value cannot be changed by means outside this code. However, volatile says “this data might be changed by someone else” and so the compiler will not make any assumptions about that data.
What is difference between volatile and static?
volatile variable value access will be direct from main memory. It should be used only in multi-threading environment. static variable will be loaded one time. If its used in single thread environment, even if the copy of the variable will be updated and there will be no harm accessing it as there is only one thread.
What is the difference between transient and volatile modifiers?
1) transient keyword is used along with instance variables to exclude them from serialization process. If a field is transient its value will not be persisted. On the other hand, volatile keyword is used to mark a Java variable as “being stored in main memory”.
Which type of variable is volatile?
Discussion Forum
| Que. | The type of a variable that is volatile is |
|---|---|
| b. | Mutable variable |
| c. | Immutable variable |
| d. | Dynamic variable |
| Answer:Mutable variable |
How do you use volatile?
A volatile keyword in C is nothing but a qualifier that is used by the programmer when they declare a variable in source code. It is used to inform the compiler that the variable value can be changed any time without any task given by the source code. Volatile is usually applied to a variable when we are declaring it.
What’s another word for volatile?
Volatile Synonyms – WordHippo Thesaurus….What is another word for volatile?
| unpredictable | variable |
|---|---|
| capricious | changeable |
| fickle | temperamental |
| unstable | erratic |
| inconstant | impulsive |
What is the difference between volatile and const volatile?
The const keyword specifies that the pointer cannot be modified after initialization; the pointer is protected from modification thereafter. The volatile keyword specifies that the value associated with the name that follows can be modified by actions other than those in the user application.
Where are const volatile variables used?
[See my Coding Standard Rule #4: Use volatile whenever possible for best practice recommendations on the use of volatile by itself.] The const keyword is can be used to modify parameters, as well as in variable declarations.
What is the C of correctness in communication?
The ‘C of Correctness’, one of six Cs which represents the six (6) qualities of effective communication, calls for revision of messages, to ensure that content, mechanics, and appearance of a message are correct. Each of these is required to meet the criteria of correctness. Correctness means that the details of a message are accurate.
What is volatile?
Volatile was originally for the birds – quite literally. Back in the 14th century, volatile was a noun that referred to birds (especially wild fowl) or other winged creatures, such as butterflies. That’s not as flighty as it sounds.
How to communicate in difficult situations?
By following some simple guidelines and by using some well-tuned communication skills, communicating in difficult situations becomes easier. Planned conversations occur when the subject has been given thought, they are planned as the time, place and other circumstances have been arranged or are chosen for a reason.
How do you ensure the message you communicate is correct?
Always ensure the message you communicate is correct to the best of your knowledge. Your receivers invest precious time in listening or reading your message because they feel that the message you communicate is reliable and if they find it otherwise, you lose your credibility. The correctness of your messages depends on your proofreading skills.