No, A thread can never be started again after starting once. It will throw IllegalThreadStateException.
No. After starting a thread, it can never be started again. If you does so, an IllegalThreadStateException is thrown.
You cannot restart a thread in Python, instead you must create and start a new thread with the same configuration.
Start() cannot be called two times as it throws IllegalThreadStateException..but for running the thread for second time call run method directly.. It works.!!
In java multithreading a thread can be created in two ways i.e. using the Thread class and using the Runnable interface. If our class extends thread class then by creating its objects, we are creating threads.
In order to create a Thread, we just need to create an instance of the Worker class. And then we can start the Thread using the start() function. In the Above code, we are creating 3 threads t1,t2 and t3 from the Worker class. Then we are starting the threads using the start() function.
Answer. The number of virtual threads that run simultaneously is the same number of cores available inside the system. This includes the Hyper-Threading/SMT cores on your Intel or AMD system. So if you have a 4-core CPU with Hyper-Threading/SMT, you can run 8 virtual threads simultaneously.
Therefore, you cannot override two methods that exist in the same class, you can just overload them.
A thread can send an interrupt by invoking interrupt on the Thread object for the thread to be interrupted. This means interruption of a thread is caused by any other thread calling the interrupt() method.
Given condition is that if executing main() n times then you can only call him (n-1) times. Explanation: Static block is executed even before the main() executed. Here first, main() get called by static block and then JVM(Java Virtual Machine) call the main(). So, main() is executed two times by calling only one time.
In dead state, the thread object is garbage collected. It is the end of the life cycle of thread. Once a thread is removed, it cannot be restarted again (as the thread object does not exist).
However, this is now no longer the case; thread repair kits can now be used to save those oversized, stripped and damaged threads. You can also use thread repair kits to strengthen threads, especially in soft or brittle materials like aluminium, plastics and cast iron.
Answer. The start() method internally calls the run() method of Runnable interface to execute the code specified in the run() method in a separate thread. The start thread performs the following tasks: It stats a new thread. The thread moves from New State to Runnable state.
Although it will be a bit more difficult to produce, a screw with two starting points is called a two start or double thread. A typical M10X 1.5 screw thread advances 1.5 mm in one revolution, but the two start or double thread advances twice the 3 mm of a normal screw thread.
Single-start threads are used for fastening. Whereas two-start and multiple-start threads are used for movement or power transmission. In this way, more travel is achieved with fewer turns.
Double thread: thread your needle and knot both ends together - the doubled up thread will make for a more secure stitch, but is impossible to unpick without cutting the thread and starting over!
No. start method of thread class is implemented as when it is called a new Thread is created and code inside run() method is executed in that new Thread. While if run method is executed directly than no new Thread is created and code inside run() will execute on current Thread and no multi-threading will take place.
Within a process or program, we can run multiple threads concurrently to improve the performance. Threads, unlike heavyweight process, are lightweight and run inside a single process – they share the same address space, the resources allocated and the environment of that process.
The answer depends on where you want the code to run. There are kernel-mode threads that run in the Linux operating system that are not associated with any particular process, and there are bare-metal embedded systems that have threads, but which have no notion of "process."
Yes, we can override overloaded method in Java. Overriding: Overriding is a feature of OOP languages like Java that is related to run-time polymorphism. A subclass (or derived class) provides a specific implementation of a method in superclass (or base class).
A method declared final cannot be overridden. A method declared static cannot be overridden but can be re-declared. If a method cannot be inherited, then it cannot be overridden.
No, the Methods that are declared as final cannot be Overridden or hidden. For this very reason, a method must be declared as final only when we're sure that it is complete. It is noteworthy that abstract methods cannot be declared as final because they aren't complete and Overriding them is necessary.
Inter-thread communication in Java is a mechanism in which a thread is paused running in its critical section and another thread is allowed to enter (or lock) in the same critical section to be executed. Note: Inter-thread communication is also known as Cooperation in Java.
Multiple threads work best when they run independently. This means that any over utilisation of a shared resource will limit or even make using multiple threads slower.
A single CPU core can have up-to 2 threads per core. For example, if a CPU is dual core (i.e., 2 cores) it will have 4 threads. And if a CPU is Octal core (i.e., 8 core) it will have 16 threads and vice-versa.