Quick Answer: What Decides Thread Priority Mcq?

Which are two valid constructors for thread?

(1) and (2) are both valid constructors for Thread….Thread(Runnable r, String name)Thread()Thread(int priority)Thread(Runnable r, ThreadGroup g)Thread(Runnable r, int priority).

How many threads can a process contain?

A process can have anywhere from just one thread to many threads. When a process starts, it is assigned memory and resources. Each thread in the process shares that memory and resources. In single-threaded processes, the process contains one thread.

What is difference between starting thread with run and start method?

The difference is that when program calls start() method, a new thread is created and code inside run() is executed in the new thread: while if you call run() method directly, no new thread will be created and code inside run() will execute in the current thread directly.

What is the default priority of a thread in Java Mcq?

Explanation: The default priority given to a thread is 5.

How do you set thread priority?

By default, a thread inherits the priority of its parent thread. You can increase or decrease the priority of any thread with the setPriority method. You can set the priority to any value between MIN_PRIORITY (defined as 1 in the Thread class) and MAX_PRIORITY (defined as 10). NORM_PRIORITY is defined as 5.

What decides thread priority?

What decides thread priority? Explanation: Thread scheduler decides the priority of the thread execution.

Which will contain the body of the thread Mcq?

Q. Which will contain the body of the thread? –> The run() method contain the body of thread because the run() method to a thread is like the main() method to an application. Starting the thread causes the object’s run method to be called in that separately executing thread.

What will happen if two thread of the same priority?

4. What will happen if two thread of the same priority are called to be processed simultaneously? Explanation: In cases where two or more thread with same priority are competing for CPU cycles, different operating system handle this situation differently.

How many threads can a process contain Mcq?

Answer. One process can have multiple Threads, Thread are subdivision of Process. One or more Threads runs in the context of process.

How many threads can be executed at a time?

Every Java thread is created and controlled by the java. lang. Thread class. A single-threaded application has only one thread and can handle only one task at a time.

What exception is thrown when you start a thread twice Mcq?

After starting a thread, it can never be started again. If you does so, an IllegalThreadStateException is thrown. In such case, thread will run once but for second time, it will throw exception.

Which one of the following is not shared by threads Mcq?

Discussion ForumQue.Which one of the following is not shared by threads?b.stackc.both program counter and stackd.none of the mentionedAnswer:both program counter and stack1 more row

Which method is used to check if a thread is running?

What will be the output of the following Java code? 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.

Which is best suited to a multi threaded environment?

The synchronized data structures provided by the java collection framework are synchronized HashMap, Hashtable, HashSet, Vector, synchronized ArrayList. The concurrent counterparts are ConcurrentHashMap, CopyOnWriteArrayList, and CopyOnWriteHashSet.

Why are threads assigned priorities?

Each thread have a priority. Priorities are represented by a number between 1 and 10. In most cases, thread schedular schedules the threads according to their priority (known as preemptive scheduling). But it is not guaranteed because it depends on JVM specification that which scheduling it chooses.

Which thread will be executed first if two threads have same priority?

If two threads of the same priority are waiting for the CPU, the scheduler arbitrarily chooses one of them to run. The chosen thread runs until one of the following conditions is true: A higher priority thread becomes runnable. It yields, or its run method exits.

What is the difference between starting thread with Run () and start () method Mcq?

What is difference between starting thread with run() and start() method? … If the target thread holds a lock on object when it is suspended, no thread can lock this object until the target thread is resumed. c.

What is the maximum thread priority?

Every thread has a priority which is represented by the integer number between 1 to 10. Thread class provides 3 constant properties: public static int MIN_PRIORITY: It is the maximum priority of a thread. The value of it is 1.