THE JR PROGRAMMING LANGUAGE phần 9 pdf

... of the ball. If the new location is at the top or the bottom of the board, it in effect makes the ball “bounce off” the border. If the new location of the ball is off the board to the left or the ... packages. Exercises 311 (i) (j) clicking the mouse within the board will move the box to the mouse’s location. (If the box is on a different board, the box sho...

Ngày tải lên: 12/08/2014, 13:22

... and Forward Statements Exercises 9. RENDEZVOUS 9. 1 The Input Statement 9. 1.1 9. 1.2 General Form and Semantics Simple Input Statements 9. 2 9. 3 9. 4 9. 5 9. 6 9. 7 9. 8 9. 9 Receive Statement Revisited Synchronization ... noted in the Preface, source code for all programming examples and the “given” parts of the programming exercises are available on the JR web...

Ngày tải lên: 12/08/2014, 13:22

... in their critical sections at the same time. Consider the values taken on by the turn variables in the Bakery2 pro- gram. Are these values bounded or can they become arbitrarily large? If they ... calls to Thread.sleep in the code. (Hint: first rewrite the code in the style of the Race program in Section 4.1.) Gather evidence that the processes in the SoSoCSTurns...

Ngày tải lên: 12/08/2014, 13:22

... send the stream 4, 8, EOS. Run the program from part (a) with the following values of EOS: 99 , -99 , and 6. Compare each of the outputs from these runs with the output from the program in part (a); ... body of the loop as long as one of the two numbers is not EOS . The if statement compares the two numbers, outputs the smaller, and receives the next number in the...

Ngày tải lên: 12/08/2014, 13:22

... and then immediately requests the fork’s return. To reduce the number of messages exchanged, the request for the fork’s return could be combined with the passing of the fork. In particular, the ... on each virtual machine. The program outputs first the number 5—for the first writex (on the main virtual machine)—and then the number 10—for the second writex (on the...

Ngày tải lên: 12/08/2014, 13:22

... in the following code: 14.3 Selection Method Support Classes 199 the edu.ucdavis .jr package. These classes provide methods to facilitate the implementation of different selection algorithms. These ... out of the body of the operation command, then it must be included in the throws clause as demonstrated by the following code: The general form of the input statement discus...

Ngày tải lên: 12/08/2014, 13:22

... the other instances of Point in the same row and receives their elements of A. The compute process then sends its value of Brc to other instances of Point in the same column and receives their ... upward neighbors. The compute method starts up the computation in the Point objects and gathers the results from all the points. 16.3 A Distributed Heartbeat Algorithm 2...

Ngày tải lên: 12/08/2014, 13:22

... clock to t. Conside r the delay method in Scheduler. Describe the effects of the following: 19. 6 19. 7 19. 8 19. 9 (a) (b) (c) Changing the first send (only) to a call. Changing the second send (only) ... calls. 19. 10 19. 11 19. 12 19. 13 19. 14 19. 15 19. 16 19. 17 Explain why it would be easier to replace the block_list operation (in Bus ) by an explicit, programm...

Ngày tải lên: 12/08/2014, 13:22

... accessibility. These are summarized in the following table. Member Description Constants The constant values associated with the class Fields The variables of the class Methods The computations ... performed by the class Properties The actions associated with reading and writing named properties of the class Indexers The actions associated with indexing instances of the...

Ngày tải lên: 12/08/2014, 23:23

... Scheduling Exercises 173 173 174 174 175 176 177 177 178 1 79 180 185 186 187 188 190 191 193 194 197 197 198 198 199 199 199 199 200 200 201 203 204 THE JR PROGRAMMING LANGUAGE Concurrent Programming in an Extended Java Simulation ... and Forward Statements Exercises 9. RENDEZVOUS 9. 1 The Input Statement 9. 1.1 9. 1.2 General Form and Semantics Simp...

Ngày tải lên: 27/06/2014, 08:20