How can you ensure that tasks are executed in parallel or simultaneously in a multithreaded application?

To ensure that tasks are executed in parallel or simultaneously in a multithreaded application, you can:

• Use profiling and debugging tools, such as Android Profiler or Traceview, which show thread activity over time.
• Add logging in the code indicating the thread name and execution time to see that tasks are started on different threads.
• Apply synchronization and locking to verify that tasks truly work independently and do not block each other.

Example of logging in Kotlin:

thread(start = true) {
    println("Task 1 running on thread: ${Thread.currentThread().name}")
}
thread(start = true) {
    println("Task 2 running on thread: ${Thread.currentThread().name}")
}

If the output shows different thread names, it means the tasks are running in parallel.