Java Programming for Complete Beginners - Java 16 - Step 04 - Introduction to Atomic Classes – AtomicInteger

The video tutorial explains the concept of atomic operations in Java, focusing on the need for thread safety in concurrent programming. It introduces the AtomicInteger class, demonstrating its use and benefits in ensuring atomic operations without locks. The tutorial also discusses the limitations of AtomicInteger and when locks are still necessary. Additionally, it provides an overview of various methods available in the AtomicInteger class and introduces other atomic classes in the Java util concurrent atomic package.

Why are locks necessary in non-atomic operations?

• To ensure operations are completed in a single step

• To increase the speed of execution

• To simplify the code structure

• To prevent data corruption in multi-threaded environments

What is the primary advantage of using AtomicInteger over traditional locks?

• It simplifies code by removing the need for locks

• It can be used for all types of operations

• It allows for more complex operations

• It is faster than using locks

Which method does AtomicInteger provide to ensure thread-safe incrementation?

• getAndAdd()

• addAndGet()

• increment()

• incrementAndGet()

Which of the following is NOT an atomic class in the Java util concurrent atomic package?

• AtomicIntegerArray

• AtomicString

• AtomicBoolean

• LongAdder

What is the purpose of the LongAdder class?

• To manage large arrays efficiently

• To handle long strings atomically

• To provide atomic operations for floating-point numbers

• To perform atomic addition and subtraction