Download Fortran 90 for Fortran 77 programmers by Michael Metcalf, John K. Reid PDF

By Michael Metcalf, John K. Reid

The good fortune of Fortran because the most important programming language within the box of clinical and numerical computing is due, partially, to its regular evolution. Following the booklet of criteria in 1966 and 1978, the committee answerable for their improvement, X3J3, labored along with an ISO committee to boost a typical appropriate to be used within the 1990's and past. This general, ISO Fortran ninety, contained new gains for large-scale computing nd facts abstraction, yet nonetheless retained all of the outdated customary positive aspects. Fortran 90/95 Explained is an intensive exam of Fortran in 1995. It represents an entire revision of the unique 1990 textual content Fortran ninety Explained, particularly a extra distinctive rationalization of many good points, extra examples, and new appendices. One thoroughly new bankruptcy discusses Fortran ninety five, a revision of the ISO Fortran ninety normal in line with the interpretations which have been asked following its implementation and use. furthermore, new gains to maintain ISO Fortran aligned with excessive functionality Fortran were additional, in addition to a couple of minor advancements. All of those are totally defined for programmers eager to replace their abilities.

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Fortran 90 for Fortran 77 programmers

The luck of Fortran because the foremost programming language within the box of medical and numerical computing is due, partially, to its regular evolution. Following the ebook of criteria in 1966 and 1978, the committee liable for their improvement, X3J3, labored along side an ISO committee to advance a customary compatible to be used within the 1990's and past.

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You then add threads to the thread group by specifying the thread group in the thread constructor. Thread t = new Thread(g, threadName); To find out whether any threads of a particular group are still runnable, use the activeCount method. activeCount() == 0) { // all threads in the group g have stopped } To interrupt all threads in a thread group, simply call interrupt on the group object. interrupt(); // interrupt all threads in group g We'll discuss interrupting threads in greater detail in the next section.

There is no point in keeping the program running if all remaining threads are daemons. Thread Groups Some programs contain quite a few threads. It then becomes useful to categorize them by functionality. For example, consider an Internet browser. If many threads are trying to acquire images from a server and the user clicks on a "Stop" button to interrupt the loading of the current page, then it is handy to have a way of interrupting all of these threads simultaneously. By ViTo @ RoR & BT Core Java 2, Volume II Advanced Features The Java programming language lets you construct what it calls a thread group so you can simultaneously work with a group of threads.

155. 156. 157. 158. 159. 160. 161. 162. 163. 164. 165. 166. 167. 168. 169. 170. 171. 172. 173. 174. 175. 176. 177. 178. 179. 180. 181. 182. 183. 184. 185. 186. 187. Thread By ViTo @ RoR & BT Core Java 2, Volume II • Advanced Features static void sleep(long millis) sleeps for the given number of milliseconds Parameters: millis the number of milliseconds to sleep In the previous sections, you learned what is required to split a program into multiple concurrent tasks. Each task needs to be placed into a run method of a class that extends Thread.

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