Question: Old MathJax webview Language java Write a class using semaphore (5 marks) (b) A platform has space for at most n people at any one

Old MathJax webview

Old MathJax webview Language java Write a class using semaphore (5 marks)

Language java

Write a class using semaphore

(b) A platform has space for at most n people at any

(5 marks) (b) A platform has space for at most n people at any one time. People are only admitted when the number of persons on the platform does not exceed the prescribed limit. Using a semaphore write a class that could be used to control automated access to the platform. Your class must keep a record of the number of people on the platform at any given point in time and must make this value visible through a public method count(). (15 marks) What are Cyclic barriers? Give an example of when you might use this type of barrier (5 marks) (b) A platform has space for at most n people at any one time. People are only admitted when the number of persons on the platform does not exceed the prescribed limit. Using a semaphore write a class that could be used to control automated access to the platform. Your class must keep a record of the number of people on the platform at any given point in time and must make this value visible through a public method count(). (15 marks)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

answer the question clearly You are building a flight-control system for which a convincing safety case must be made. Would you assign the tasks of safety requirements engineering, test case...

re Regular Languages and Finite Automata (a) Let L be the set of all strings over the alphabet {a, b} that end in a and do not contain the substring bb. Describe a deterministic finite automaton...

Define the contextual-equivalence relation ` M =ctx M0 : for pairs of PCF terms M, M0 , PCF types , and PCF type environments . [3 marks] (ii) For PCF terms M and N with respective typings ` M : and...

can someone solve this Modern workstations typically have memory systems that incorporate two or three levels of caching. Explain why they are designed like this. [4 marks] In order to investigate...

Describe how to construct the function cpo ((D E), v) of two cpos (D, vD) and (E, vE). Prove that ((D E), v) is a cpo. (You may use facts about least upper bounds provided you state them clearly.)...

CANMNMM January of this year. (a) Each item will be held in a record. Describe all the data structures that must refer to these records to implement the required functionality. Describe all the...

: (i) What data structures are maintained by the page manager. (ii) What happens when a machine performs a read operation to a page. (iii) What happens when a machine performs a write operation to a...

A suite of Modula-3 procedures is being developed to handle arbitrarily large nonnegative integers. A test program for handling such numbers includes the following TYPE declaration: TYPE Digit =...

Old MathJax webview And the programme requires some full time continuous enrollment and consists of approximately 2 years of class works of perceptions of the PhD visits these programmes and blue is...

Old MathJax webview please complete 1 2 and 3( there is no additional information) thanks **UPDATED QUESTIONS*** 1) what discourses or information, if any, does the company include about their...

A bronze bushing is mounted inside a steel sleeve. Knowing that the density of bronze is 8800 kg/m 3 and of steel is 7860 kg/m 3 , determine the center of gravity of the assembly. 225 m 10 m 20 ia 15...

This networked Tic Tac Toe game project will test your networking and database management knowledge. The server will maintain a database of users to keep track of their login details and scores in...

In activity - based costing, 'overhead costs' refer to: Non - manufacturing costs Indirect costs Manufacturing costs Manufacturing and non - manufacturing costs

What is the output obtained when each of the input lists specified is passed to the following method: public static void mystery(ArrayList- Integer> list) f for (int i - list.size0-2:i> 0:i-) int a -...