Here are the entries you selected - page 162:


3159 - Returning multiple values from a function call in various languages - a comparison
I've always thought it a bit odd that you call a function with any number of parameters, and yet it returns a single value; in Java, C or C++ you declare a return type (void if there is not to be anything returned) and you are then constrained by that specification. There are, of course, other ways ....

3158 - Ruby training - some fresh examples for string handling applications
Ruby's a great language. No - let me rephrase that "Ruby's a fantastic language" ... for many tasks such as "data munging" - handling / manipulating large flows of data, in all sorts of ways. But in my training role, I come across far more people using Ruby on Rails, Selenium and Watir than Ruby fo ....

3157 - A new monopoly on the ferry to Northern Ireland
On 31st January, I traveled by overnight ferry from Birkenhead to Belfast - fare, 40 pounds, to include a dinner in the evening and breakfast the next morning. On February 3rd, I returned - fare 40 pounds, but "as from 1st February we no longer include dinner and breakfast in this fare" - and dinne ....

3156 - Splitting data reading code from data processing code - Ruby
An iterator (a.k.a. generator in Python) is a function which returns its results as it calculates them, rather than building them up into a larger structure to return all at once when the function is completed. So where you have a big flow of incoming data, you can handle it as it arrives rather th ....

3155 - Rake - a build system using code written in Ruby
If you're programming in C, C++ or Java, you'll be managing a large number of source files, and using a whole series of commands to build these forward into .o (object) or .class (java class) files, then - in the cases of C and C++ - into executable files. The make system has been around for as lon ....

3154 - Changing a class later on - Ruby
In Ruby, you can define a class ... and then come back and add methods to it. But why would you want to? Let's suppose that you've got a base class - I'll use "Rectangle" as my example, and you've already subclassed it to "Square" and perhaps a few other things, via a required file that you share ....

3153 - Points West to Belfast
It's been a very busy couple of days ... I had planned to pack yesterday morning and travel up by train, through the afternoon and early evening to take the overnight ferry from Birkenhead to Liverpool Belfast. Then the BBC called ... and I found myself being interviewed for a story on Points West ....

3152 - Jargon busting
I've been reading a report on a minor railway accident which could have been much more serious - a crane driver swung a piece of rail he was replacing on one track in front of a train that was approaching on another line - [report here], and it struck me as I read just how many abbreviations / acron ....

3151 - Disassembling Python and Java - previously compiled code
Most modern languages translate the source code you give into an intermediate byte code prior to it being run, and in can sometimes be useful and instructive to reverse engineer the code to help to understand what's going on within the more arcane elements of the language. Some languages actually ....

3150 - Python dictionaries - mutable and immutable keys and values
Lists, Tuples, and dictionaries are the conventional collection variables in Python - but when you stop to consider it, objects and strings are collections too. All of these structures bundle together other elements (members) in various ways. In first dictionary demonstrations, we usually use stri ....

Please choose the next page you want to view: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 --162-- 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477

Training sample © 2024, WELL HOUSE CONSULTANTS LTD
This is http://www.wellho.net/demo/mqchunks.php
See source code here • More examples - same topic here
Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
Phone: +44 (0) 1225 708 225 • EMAIL: info@wellho.net • WEB: http://www.wellho.net