What is difference between process and thread in Java?
A process is a program under execution i.e an active program. A thread is a lightweight process that can be managed independently by a scheduler. Processes require more time for context switching as they are more heavy. Threads require less time for context switching as they are lighter than processes.
What is the difference between a thread and a process Mcq?
Process means a program is in execution, whereas thread means a segment of a process. A Process is not Lightweight, whereas Threads are Lightweight. A Process takes more time to terminate, and the thread takes less time to terminate. Process takes more time for creation, whereas Thread takes less time for creation.
What is difference between thread and process?
Thread is the segment of a process means a process can have multiple threads and these multiple threads are contained within a process.
Difference between Process and Thread:
|1.||Process means any program is in execution.||Thread means segment of a process.|
|8.||Process is called heavy weight process.||Thread is called light weight process.|
What is difference between starting thread with Run () and start () method Mcq?
Explanation: run() method is used to define the code that constitutes the new thread, it contains the code to be executed. start() method is used to begin execution of the thread that is execution of run(). run() itself is never used for starting execution of the thread.
What is thread life cycle?
A thread goes through various stages in its lifecycle. For example, a thread is born, started, runs, and then dies. The following diagram shows the complete life cycle of a thread. … Thread transitions back to the runnable state only when another thread signals the waiting thread to continue executing.
What are process and threads?
A process, in the simplest terms, is an executing program. One or more threads run in the context of the process. A thread is the basic unit to which the operating system allocates processor time. A thread can execute any part of the process code, including parts currently being executed by another thread.
Why thread is faster than process?
a process: because very little memory copying is required (just the thread stack), threads are faster to start than processes. … The CPU caches and program context can be maintained between threads in a process, rather than being reloaded as in the case of switching a CPU to a different process.
Can a process have 0 threads?
A processor executes threads, not processes, so each application has at least one process, and a process always has at least one thread of execution, known as the primary thread. Though it does go on to say: A process can have zero or more single-threaded apartments and zero or one multithreaded apartment.
Which method is used to know the current state of thread?
A thread can be created by implementing the Runnable interface and overriding the run() method. The current thread is the currently executing thread object in Java. The method currentThread() of the Thread class can be used to obtain the current thread.
Which method is used to check if a thread is running?
Explanation: isAlive() method is used to check whether the thread being called is running or not, here thread is the main() method which is running till the program is terminated hence it returns true. 10.
Which method is used to determine the current state of thread Mcq?
Explanation:isAlive() function is defined in class Thread, it is used for implementing multithreading and to check whether the thread called upon is still running or not.