class ThreadB extends { Il extends which class int b1, b2; public ThreadB { I/ arguments b1 = start; b2 = end; /l set the name of thread } public void run() { while( b1 <= b2) { System.out.printin(Thread.currentThread().getName()+" "+ b1); try { Il put thread to sleep for 3000 ms b1 += 2; } catch( ex) { I/ which exception to catch System.out.printin("error :"+ex.getMessage()); } } } } public class MianThreadA { public static void main( String || args ) { Il Create a thread thrdB1 of the class using values 100, 200, "Even" II Create a thread thrdB2 of the class using values 101, 200, “Odd" System.out.printIn("Thread output\n"); Il Start the two threads }

class ThreadB extends { Il extends which class int b1, b2; public ThreadB { I/ arguments b1 = start; b2 = end; /l set the name of thread } public void run() { while( b1 <= b2) { System.out.printin(Thread.currentThread().getName()+" "+ b1); try { Il put thread to sleep for 3000 ms b1 += 2; } catch( ex) { I/ which exception to catch System.out.printin("error :"+ex.getMessage()); } } } } public class MianThreadA { public static void main( String || args ) { Il Create a thread thrdB1 of the class using values 100, 200, "Even" II Create a thread thrdB2 of the class using values 101, 200, “Odd" System.out.printIn("Thread output\n"); Il Start the two threads }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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If the thread pool contains no available thread : Select one: a.the server runs a new process b.the server goes to another thread pool c.the server waits until one becomes free d.the server demands for a new pool creation
whats wrong in code #include int counter; static void * thread_func(void * _tn) { int i; for (i = 0; i < 100; i++) counter++; return NULL; } int main( ) { int i, N = 5; pthread_t t[N]; for (i = 0; i < N; i++) pthread_create(&t[i], NULL,thread_func, NULL); for (i = 0; i < N; i++) pthread_join(t[i], NULL); printf("%d\n", counter); return 0; }
Solution question number 2
An auction is being conducted for a valuable item of price Rs.10,000. There are three persons participating in the auction (three threads). Each person has only one chance to bid. If he tries to bid again, he has to wait until all the other threads are given a chance. Synchronize the events to organize the auction. Use random generator to quote the price of the item above 10,000. The thread with the highest price will win the valuable item.
Please solve this exercise important.
-0-0- thread (const thread&) = delete; thread& operator=(const thread&) = delete; void swap(thread& _Other) noexcept { _STD swap(_Thr, _Other._Thr); } _NODISCARD bool joinable() const noexcept { return _Thr._Id != 0; x void join() { if (!joinable()) { _Throw_Cpp_error(_ } if (_Thr._Id == _Thrd_ _Throw_Cpp_error(_ } if (_Thrd_join(_Thr, n Exception Thrown Exception thrown: read access violation. this was nullptr. _Thr = {}; Copy Details | Start Live Share session... ✔ Exception Settings ✔ Break when this exception type is thrown Except when thrown from: Reservation System.exe Open Exception Settings Edit Conditions _Throw_Cpp_error(_Code: _NO_SUCH_PROCESS); ох E..
Question#2: Write a Python program as follow: Contain a method named print time, that print current date and time Every 5 seconds create a new thread to invoke the print time method.
Consider the below Java code. import public class Semaphore Demo java.util.concurrent.Semaphore; Semaphore binarySema= new Semaphore (1); public static void main (String args[]) { final SemaphoreDemo sema DemoObj= new Semaphore Demo (); Thread td1= new Thread() ( public void run () { } }} } }; Thread td2= new Thread () { @Override public void run () { sema DemoObj.testMutualExclusion (); } sema DemoObj.testMutualExclusion (); tdl.start(); td2.start (); private void testMutualExclusion () { try { binarySema.acquire(); System.out.println (Thread.currentThread().getName()+ "inside the region of mutual exclusive."); Thread.sleep (1000); } catch (InterruptedException e) { ie.printStackTrace(); } finally ( System.out.println (Thread.currentThread().getName() + "outside the region of mutual exclusive."); What would be the output of the program?
Exercise 1: Write a thread class TabPrinter that prints the elements of an array of integers (in one line) every 2 seconds 5 times. Use the way of extending the class thread. Write the main method which creates and starts three threads Printer which will print different arrays of integers. After that it prints "Main won’t wait. Main exits". Modify the above thread program so that you implement the interface Runnable. Make the main thread waiting till all other threads finish execution. ____________________________________________________________________________________________ Exercise 2: Write a thread class TextThread that prints a text every 1 second 10 times. Read the following main class. Try to guess what will be its output. class Test { public static void main(String s[]) throws Exception { TextThread x = new TextThread ("I am thread x"); TextThread y= new TextThread ("I am thread y"); System.out.println("I am Main thread"); } } Write it and execute it. Is the…
Lab Activities: Exercise 1: 1) Write a thread class TabPrinter that prints the elements of an array of integers (in one line) every 2 seconds 5 times. Use the way of extending the class thread. Write the main method which creates and starts three threads Printer which will print different arrays of integers. After that it prints "Main won't wait. Main exits". 2) Modify the above thread program so that you implement the interface Runnable. Make the main thread waiting till all other threads finish execution.
Steps to be followed: Create a class called MyThread that extends the Thread class. Declare an instance variable int limitToStop in the MyThread class. Create a parameterized constructor in the MyThread class that takes an int as a parameter to initialize a limitToStop instance variable. Override the run() method in the MyThread class. In the run() method, put a for-loop that goes from 0 to limitToStop. The block associated with the for-loop should print out only the odd numbers. Call Thread.sleep(1000) after every number you print out in the for-loop you created in the previous step. The Thread.sleep(1000) method throws an InterruptedException , which is a checked exception. Therefore, we need to enclose the Thread.sleep(1000) call in a try block. Also, add a catch block associated with the try that catches the InterruptedException and prints out the exception information using the printStackTrace() method. Create a MyThread variable using the new keyword in the main()…
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