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Poll Summary

Number Of Votes Cast
86663
Overall Acceptance Rates
Choice Number Percentage
Yes 55009 0.6347460854113058
No 19526 0.22530953232636766
Undecided 12128 0.13994438226232647

Servlets and JSPsYesNoUndecidedVotes
A Web App Framework - WEB4J 0.6186440677966102 0.1793041926851026 0.20205173951828725 2242
Always maintain HttpSessions 0.7142857142857143 0.16770186335403728 0.11801242236024845 161
Beware multilingual submit buttons 0.6416184971098265 0.2023121387283237 0.15606936416184972 173
Beware of common hacks 0.8461538461538461 0.07692307692307693 0.07692307692307693 130
Beware of custom cookies 0.7767857142857143 0.07142857142857142 0.15178571428571427 112
Beware of doubly escaped ampersands 0.7692307692307693 0.1282051282051282 0.10256410256410256 78
Beware of URL rewriting 0.6263736263736264 0.21978021978021978 0.15384615384615385 182
Choose form validation style carefully 0.7131147540983607 0.18032786885245902 0.10655737704918032 122
Consider Controllers for redirects 0.4878048780487805 0.24390243902439024 0.2682926829268293 41
Do not synchronize doGet, doPost 0.6893564356435643 0.1967821782178218 0.11386138613861387 808
Emit flexible URLs 0.746268656716418 0.07462686567164178 0.1791044776119403 67
Escape special characters 0.5853932584269663 0.29775280898876405 0.11685393258426967 890
Forward versus redirect 0.7201704545454546 0.13636363636363635 0.1434659090909091 704
JSPs should contain only presentation logic 0.8766519823788547 0.06167400881057269 0.06167400881057269 227
Loss of data during restart 0.6698113207547169 0.14150943396226415 0.18867924528301888 106
Manage sessions closely 0.803921568627451 0.10457516339869281 0.0915032679738562 153
Measure web app performance 0.8666666666666667 0.07692307692307693 0.05641025641025641 195
Minimize site response time 0.7291666666666666 0.14583333333333334 0.125 96
Parse parameters into domain objects 0.4 0.32 0.28 25
Pre-populate forms 0.46601941747572817 0.33980582524271846 0.1941747572815534 103
Prefer JSTL tags 0.7450980392156863 0.14705882352941177 0.10784313725490197 204
Prefer UTF-8 in all layers 0.7948717948717948 0.09615384615384616 0.10897435897435898 156
Prevent self-linking 0.39285714285714285 0.5357142857142857 0.07142857142857142 28
Refactor large Controllers 0.8 0.1 0.1 20
Repel invalid requests 0.76 0.12 0.12 25
Reuse login page for errors 0.695 0.175 0.13 200
Send trouble-ticket emails 0.5454545454545454 0.18181818181818182 0.2727272727272727 22
Serve binary content 0.5949367088607594 0.21518987341772153 0.189873417721519 79
Session-scope objects often Serializable 0.7364341085271318 0.13953488372093023 0.12403100775193798 129
Struts seems mediocre 0.4326923076923077 0.3894230769230769 0.1778846153846154 208
Thread-safety in web apps 0.7457627118644068 0.15593220338983052 0.09830508474576272 295
Understand details of FORM tags 0.7941176470588235 0.08823529411764706 0.11764705882352941 34
Use Cascading Style Sheets 0.725 0.175 0.1 120
Use extensions for fine-grained security 0.5306122448979592 0.3469387755102041 0.12244897959183673 49
Use Model-View-Controller framework 0.891640866873065 0.034055727554179564 0.07430340557275542 323
Use templates to standardize layout 0.4727272727272727 0.4 0.12727272727272726 55
Validate email addresses 0.43636363636363634 0.4155844155844156 0.14805194805194805 385
Validate generated HTML 0.7134502923976608 0.14619883040935672 0.14035087719298245 342
Web usability guidelines 0.8378378378378378 0.05405405405405406 0.10810810810810811 37
Wrap file upload requests 0.4626865671641791 0.26865671641791045 0.26865671641791045 67
SwingYesNoUndecidedVotes
A Swing App - StocksMonitor 0.6853658536585366 0.16097560975609757 0.15365853658536585 410
Actions 0.6979166666666666 0.20833333333333334 0.09375 96
Align menu items 0.6597938144329897 0.20618556701030927 0.13402061855670103 97
Change theme 0.6666666666666666 0.1836734693877551 0.14965986394557823 147
Consider JGoodies Forms for layouts 0.7 0.075 0.225 120
Don't bury dialogs 0.6666666666666666 0.14814814814814814 0.18518518518518517 27
Don't subclass JDialog or JFrame 0.3067484662576687 0.4110429447852761 0.2822085889570552 163
Filter table rows 0.5 0.3888888888888889 0.1111111111111111 18
Input dialogs 0.5348837209302325 0.2558139534883721 0.20930232558139536 43
Launch other applications 0.7333333333333333 0.26666666666666666 0.0 30
Layout Managers 0.6403162055335968 0.22529644268774704 0.13438735177865613 253
Look and Feel guidelines 0.8571428571428571 0.08163265306122448 0.061224489795918366 49
Minimal Swing application 0.582089552238806 0.2462686567164179 0.17164179104477612 134
Observers and listeners 0.4563106796116505 0.2961165048543689 0.24757281553398058 206
Preferences dialogs 0.46875 0.15625 0.375 32
Provide an uncaught exception handler 0.6058394160583942 0.2116788321167883 0.18248175182481752 137
Render table cells 0.6677631578947368 0.17105263157894737 0.1611842105263158 304
Sort table rows 0.4375 0.3 0.2625 80
Splash screen 0.5664556962025317 0.3037974683544304 0.12974683544303797 316
Standardized dialogs 0.5555555555555556 0.3333333333333333 0.1111111111111111 27
Swing in general 0.75 0.08333333333333333 0.16666666666666666 36
Swing threads 0.562874251497006 0.23353293413173654 0.20359281437125748 167
Swing utility tasks 0.775 0.125 0.1 40
Timers 0.3233082706766917 0.48872180451127817 0.18796992481203006 133
Using JavaHelp 0.5319148936170213 0.2872340425531915 0.18085106382978725 94
Using preferences 0.44776119402985076 0.31343283582089554 0.23880597014925373 67
Verify input with Model Objects 0.6363636363636364 0.18181818181818182 0.18181818181818182 11
Verify input with regular expressions 0.4358974358974359 0.3333333333333333 0.23076923076923078 39
ExceptionsYesNoUndecidedVotes
Avoid @throws in javadoc 0.43855421686746987 0.3204819277108434 0.24096385542168675 415
Avoid empty catch blocks 0.821875 0.1125 0.065625 320
Be specific in throws clause 0.6066176470588235 0.3235294117647059 0.06985294117647059 272
Beware of unknown root causes 0.3548387096774194 0.2903225806451613 0.3548387096774194 31
Checked versus unchecked exceptions 0.516728624535316 0.28004956629491945 0.20322180916976457 1614
Exception translation 0.9147286821705426 0.05426356589147287 0.031007751937984496 129
Exceptions and control flow 0.6931818181818182 0.16477272727272727 0.14204545454545456 176
Finally and catch 0.6606498194945848 0.1967509025270758 0.14259927797833935 554
Javadoc all exceptions 0.5584415584415584 0.23376623376623376 0.2077922077922078 154
Pass all pertinent data to exceptions 0.9444444444444444 0.015873015873015872 0.03968253968253968 126
Stack trace as String 0.7634112792297112 0.1485557083906465 0.08803301237964237 727
Use template for repeated try-catch 0.6588235294117647 0.11764705882352941 0.2235294117647059 85
Input-OutputYesNoUndecidedVotes
Always close streams 0.7443820224719101 0.14606741573033707 0.10955056179775281 356
Buffering usually appropriate 0.8611111111111112 0.05555555555555555 0.08333333333333333 72
Console input 0.5273972602739726 0.2979452054794521 0.17465753424657535 292
Copy a file 0.6818181818181818 0.21818181818181817 0.1 110
Reading and writing binary files 0.48859934853420195 0.2736156351791531 0.23778501628664495 307
Reading and writing Serializable objects 0.5688311688311688 0.2597402597402597 0.17142857142857143 385
Reading and writing text files 0.6058897243107769 0.22556390977443608 0.16854636591478697 3192
DatabasesYesNoUndecidedVotes
Business identifiers as String 0.8295819935691319 0.10610932475884244 0.06430868167202572 311
Connection pools 0.8685121107266436 0.06228373702422145 0.06920415224913495 289
Consider data layer tools 0.5853658536585366 0.1951219512195122 0.21951219512195122 41
Consider using standard SQL 0.693069306930693 0.1782178217821782 0.12871287128712872 101
Consider wrapper classes for optional data 0.7681159420289855 0.13043478260869565 0.10144927536231885 69
Data access objects 0.6421052631578947 0.19298245614035087 0.1649122807017544 285
Data exception wrapping 0.7241379310344828 0.15517241379310345 0.1206896551724138 58
Data is king 0.875 0.0625 0.0625 112
Don't perform basic SQL tasks in code 0.8493150684931506 0.0821917808219178 0.0684931506849315 73
Encapsulate connections 0.8043478260869565 0.06521739130434782 0.13043478260869565 46
Keep SQL out of code 0.5392670157068062 0.3193717277486911 0.14136125654450263 191
Prefer PreparedStatement 0.8955223880597015 0.04477611940298507 0.05970149253731343 67
Reduce database code duplication 0.9032258064516129 0.03225806451612903 0.06451612903225806 31
Remember the basics of database design 0.873015873015873 0.06349206349206349 0.06349206349206349 63
Simplify database operations 0.5 0.3 0.2 20
Try pseudo-persistence for mock ups 0.6296296296296297 0.25925925925925924 0.1111111111111111 27
Use template for transactions 0.6842105263157895 0.05263157894736842 0.2631578947368421 19
CollectionsYesNoUndecidedVotes
Choosing the right Collection 0.8141263940520446 0.08921933085501858 0.09665427509293681 807
Encapsulate collections 0.8131313131313131 0.06565656565656566 0.12121212121212122 198
Iterate without an index 0.7711598746081505 0.1724137931034483 0.05642633228840126 319
Prefer Collections over older classes 0.8429752066115702 0.05785123966942149 0.09917355371900827 121
Two ways of using Iterator 0.609072715143429 0.2408272181454303 0.15010006671114076 1499
Use for-each liberally 0.7598425196850394 0.15354330708661418 0.08661417322834646 254
Use interface references to Collections 0.6974789915966386 0.19327731092436976 0.1092436974789916 119
Use standard Collections 0.8263157894736842 0.05789473684210526 0.11578947368421053 190
Overriding Object MethodsYesNoUndecidedVotes
Avoid clone 0.41869158878504675 0.34766355140186916 0.2336448598130841 535
Implementing compareTo 0.5012531328320802 0.3333333333333333 0.16541353383458646 399
Implementing equals 0.590625 0.275 0.134375 320
Implementing hashCode 0.554089709762533 0.2691292875989446 0.17678100263852242 379
Implementing toString 0.4976303317535545 0.3056872037914692 0.1966824644549763 422
Never rely on finalize 0.7263157894736842 0.15789473684210525 0.11578947368421053 95
Common TasksYesNoUndecidedVotes
Arrays as String 0.47038327526132406 0.3554006968641115 0.17421602787456447 287
Clipboard copy and paste 0.7763300760043431 0.13355048859934854 0.09011943539630836 1842
Command line operations 0.45514950166112955 0.3853820598006645 0.15946843853820597 301
Compare and sort Strings 0.5136986301369864 0.339041095890411 0.14726027397260275 292
Copy an array 0.5875 0.29375 0.11875 640
Determine if Strings are equal 0.6704545454545454 0.24242424242424243 0.08712121212121213 528
Examine bytecode 0.5111111111111111 0.37777777777777777 0.1111111111111111 45
Fetch web page and header 0.6426332288401254 0.20689655172413793 0.15047021943573669 319
Generate random numbers 0.6107904441237775 0.2641494308160975 0.12506012506012507 12474
Get database connection 0.5504511894995898 0.2830188679245283 0.16652994257588188 1219
Get size of object in memory 0.39502762430939226 0.43922651933701656 0.16574585635359115 362
Implement code tables 0.5714285714285714 0.23214285714285715 0.19642857142857142 56
Internationalization 0.5074626865671642 0.29850746268656714 0.19402985074626866 67
Logging messages 0.6040575916230366 0.225130890052356 0.17081151832460734 1528
Measure application performance 0.7719298245614035 0.14035087719298245 0.08771929824561403 57
Modernize old code 0.8813559322033898 0.06779661016949153 0.05084745762711865 59
Open file in native directory 0.5555555555555556 0.3333333333333333 0.1111111111111111 9
Parse text 0.6054216867469879 0.21686746987951808 0.17771084337349397 664
Pattern-match lines of a file 0.5642023346303502 0.2801556420233463 0.1556420233463035 257
Read jar version information 0.5567010309278351 0.35051546391752575 0.09278350515463918 97
Recovering resources 0.8529411764705882 0.08823529411764706 0.058823529411764705 34
Recursive file listing 0.7322551662174304 0.16172506738544473 0.10601976639712489 1113
Replace a substring 0.5822784810126582 0.29873417721518986 0.1189873417721519 395
Representing money 0.7461832061068703 0.11641221374045801 0.13740458015267176 524
Send an email 0.5515414258188824 0.23747591522157996 0.21098265895953758 2076
Time execution speed 0.706766917293233 0.21052631578947367 0.08270676691729323 133
Common Design PatternsYesNoUndecidedVotes
Abstract Factory 0.6946107784431138 0.16766467065868262 0.1377245508982036 167
Command objects 0.55 0.2 0.25 20
Factory methods 0.6207759699624531 0.21401752190237797 0.16520650813516896 799
Immutable objects 0.8138163437236732 0.09435551811288964 0.09182813816343724 1187
Lazy initialization 0.7566137566137566 0.13227513227513227 0.1111111111111111 189
Model Objects 0.6229508196721312 0.1557377049180328 0.22131147540983606 122
Plugin Factory 0.6896551724137931 0.10344827586206896 0.20689655172413793 29
Private constructor 0.7372505543237251 0.14301552106430154 0.1197339246119734 902
Singleton 0.7284345047923323 0.17252396166134185 0.09904153354632587 313
Template method 0.711864406779661 0.22033898305084745 0.06779661016949153 59
Type-Safe Enumerations 0.8010335917312662 0.10852713178294573 0.09043927648578812 387
Wrapper (Decorator) 0.5789473684210527 0.28421052631578947 0.1368421052631579 95
Common PracticesYesNoUndecidedVotes
Avoid basic style errors 0.8547008547008547 0.06837606837606838 0.07692307692307693 117
Avoid raw types 0.7709251101321586 0.15418502202643172 0.07488986784140969 227
Beware of instanceof operator 0.6143931256713212 0.23254564983888293 0.15306122448979592 1862
Class for constants 0.6348122866894198 0.2366325369738339 0.1285551763367463 879
Construct classes from the outside in 0.9130434782608695 0.057971014492753624 0.028985507246376812 69
Do not break portability 0.7466666666666667 0.18666666666666668 0.06666666666666667 75
Don't declare local variables before use 0.5570934256055363 0.25951557093425603 0.18339100346020762 289
Fields should usually be private 0.65 0.20833333333333334 0.14166666666666666 120
Interface for constants 0.31784841075794623 0.5440097799511002 0.13814180929095354 818
Know the core libraries 0.7948717948717948 0.08547008547008547 0.11965811965811966 117
Minimize ripple effects 0.8671328671328671 0.03496503496503497 0.0979020979020979 143
Naming conventions 0.33611111111111114 0.5833333333333334 0.08055555555555556 360
Nest classes with care 0.5263157894736842 0.3157894736842105 0.15789473684210525 19
Output parameters 0.39037433155080214 0.39037433155080214 0.2192513368983957 187
Separate public and private members 0.7191011235955056 0.1797752808988764 0.10112359550561797 89
String concatenation does not scale 0.8484848484848485 0.09696969696969697 0.05454545454545454 165
Tag or marker interfaces 0.6473029045643154 0.1950207468879668 0.15767634854771784 241
Uncommon classes need explicit imports 0.7719298245614035 0.13157894736842105 0.09649122807017543 114
Use @Override liberally 0.8351648351648352 0.09010989010989011 0.07472527472527472 455
Use final liberally 0.6105417276720352 0.22693997071742314 0.16251830161054173 683
Use javadoc liberally 0.7616279069767442 0.11627906976744186 0.12209302325581395 172
Use static imports rarely 0.5785813630041725 0.2865090403337969 0.1349095966620306 719
Use System.exit with care 0.6672077922077922 0.18831168831168832 0.1444805194805195 616
Use Version Control tools 0.6923076923076923 0.13846153846153847 0.16923076923076924 65
Validate method arguments 0.6229508196721312 0.22131147540983606 0.1557377049180328 244
Wisdom, not rules 0.9607843137254902 0.0196078431372549 0.0196078431372549 51
InheritanceYesNoUndecidedVotes
Consider composition instead of subclassing 0.7719298245614035 0.07602339181286549 0.15204678362573099 171
Designing for subclassing 0.75 0.1388888888888889 0.1111111111111111 72
Overridable methods need special care 0.82 0.07 0.11 100
Remember styles of inheritance 0.9387755102040817 0.0 0.061224489795918366 49
More Common PracticesYesNoUndecidedVotes
Avoid null if possible 0.6298701298701299 0.23376623376623376 0.13636363636363635 308
Beware of Byte Order Marks 0.6764705882352942 0.2647058823529412 0.058823529411764705 34
Beware of DecimalFormat 0.43333333333333335 0.31666666666666665 0.25 180
Beware of floating point numbers 0.8770491803278688 0.08196721311475409 0.040983606557377046 122
Clarifying method 0.8958333333333334 0.0625 0.041666666666666664 96
Coding conventions 0.8681318681318682 0.04395604395604396 0.08791208791208792 91
Compile regular expressions once 0.7454545454545455 0.16363636363636364 0.09090909090909091 55
Conditional compile 0.5043859649122807 0.38596491228070173 0.10964912280701754 228
Consider code generators 0.75 0.14473684210526316 0.10526315789473684 76
Consider immutable forms for dates 0.4666666666666667 0.38333333333333336 0.15 60
Conventional name for return value 0.7291666666666666 0.1875 0.08333333333333333 144
Defensive copying 0.8638297872340426 0.06170212765957447 0.07446808510638298 470
Design by Contract 0.8023255813953488 0.09302325581395349 0.10465116279069768 172
Don't use tab characters 0.35276073619631904 0.5950920245398773 0.05214723926380368 326
Extra space in argument list 0.1894353369763206 0.7522768670309654 0.058287795992714025 549
Generating unique IDs 0.5749601275917066 0.266347687400319 0.15869218500797447 2508
Include 'from', exclude 'to' 0.7894736842105263 0.12280701754385964 0.08771929824561403 57
Multiple return statements 0.5495689655172413 0.3297413793103448 0.1206896551724138 464
Overloading can be tricky 0.7821782178217822 0.1485148514851485 0.06930693069306931 101
Package by feature, not layer 0.7179261862917399 0.13005272407732865 0.15202108963093147 1138
Passwords never in clear text 0.6453900709219859 0.1773049645390071 0.1773049645390071 141
Prefer empty items to null ones 0.6826923076923077 0.20673076923076922 0.11057692307692307 416
Quote dynamic text when logging 0.8163265306122449 0.12244897959183673 0.061224489795918366 98
Self-encapsulate fields 0.6387434554973822 0.16753926701570682 0.193717277486911 191
Structs are occasionally useful 0.6738197424892703 0.1630901287553648 0.1630901287553648 233
Test using main method 0.37719298245614036 0.5175438596491229 0.10526315789473684 114
Try alternatives to ResourceBundle 0.3225806451612903 0.3387096774193548 0.3387096774193548 62
Use a fake system clock 0.5683453237410072 0.23741007194244604 0.19424460431654678 139
Use a testing framework (JUnit) 0.8362068965517241 0.09482758620689655 0.06896551724137931 116
Use Ant for build scripts 0.7313432835820896 0.14925373134328357 0.11940298507462686 268
Use boxing with care 0.6666666666666666 0.21393034825870647 0.11940298507462686 201
Use enums to restrict arguments 0.7404580152671756 0.1297709923664122 0.1297709923664122 131
Validate state with class invariants 0.5882352941176471 0.25 0.16176470588235295 68
Validation belongs in a Model Object 0.582089552238806 0.29850746268656714 0.11940298507462686 134
AssertionsYesNoUndecidedVotes
Assert is for private arguments only 0.8163265306122449 0.1360544217687075 0.047619047619047616 147
Assert use cases 0.36231884057971014 0.43478260869565216 0.2028985507246377 207
Assertions in general 0.8571428571428571 0.14285714285714285 0.0 35
Force enabling of assertions 0.5689655172413793 0.27586206896551724 0.15517241379310345 58
ConstructorsYesNoUndecidedVotes
Avoid JavaBeans style of construction 0.6217712177121771 0.1881918819188192 0.1900369003690037 542
Beware of mistaken field redeclares 0.8333333333333334 0.1 0.06666666666666667 30
Construct Object using class name 0.5348837209302325 0.3023255813953488 0.16279069767441862 215
Constructors in general 0.6326530612244898 0.2653061224489796 0.10204081632653061 49
Constructors shouldn't call overridables 0.5977011494252874 0.25287356321839083 0.14942528735632185 174
Constructors shouldn't start threads 0.7 0.18 0.12 50
Copy constructors 0.6399383191981496 0.2243639167309175 0.13569776407093292 1297
Don't pass 'this' out of a constructor 0.625 0.23214285714285715 0.14285714285714285 56
Initializing fields to 0-false-null is redundant 0.679144385026738 0.22459893048128343 0.0962566844919786 374
SerializationYesNoUndecidedVotes
Implementing Serializable 0.6337890625 0.18359375 0.1826171875 1024
Serialization and subclassing 0.49504950495049505 0.31683168316831684 0.18811881188118812 101
Some classes need readResolve 0.76 0.12 0.12 75
ThreadsYesNoUndecidedVotes
Always shut down an ExecutorService 0.7424812030075187 0.11466165413533834 0.14285714285714285 532
Avoid ThreadGroup 0.5527950310559007 0.2484472049689441 0.19875776397515527 161
Data integrity first 0.7337662337662337 0.1038961038961039 0.16233766233766234 154
Document thread safety 0.7333333333333333 0.17777777777777778 0.08888888888888889 45
Dump thread information 0.7916666666666666 0.16666666666666666 0.041666666666666664 24
Handle InterruptedException 0.5454545454545454 0.22727272727272727 0.22727272727272727 44
Launch thread is just another user thread 0.8378378378378378 0.08108108108108109 0.08108108108108109 37
Objects communicating across threads 0.6992481203007519 0.17293233082706766 0.12781954887218044 133
Perform N tasks in parallel 0.6096774193548387 0.17419354838709677 0.2161290322580645 310
Prefer modern libraries for concurrency 0.9444444444444444 0.05555555555555555 0.0 18
Query host for the number of processors 0.8823529411764706 0.08823529411764706 0.029411764705882353 34
Read-write locks 0.7171717171717171 0.1414141414141414 0.1414141414141414 99
Remember the types of intrinsic lock 0.8075471698113208 0.1018867924528302 0.09056603773584905 265
Schedule periodic tasks 0.6617795753286148 0.1956521739130435 0.14256825075834176 1978
Stop threads through cooperation 0.6333333333333333 0.2866666666666667 0.08 150
Synchronize access to mutable fields 0.5520833333333334 0.2864583333333333 0.16145833333333334 192
Synchronized is implementation detail 0.6129032258064516 0.24731182795698925 0.13978494623655913 93
Thread priorities are not portable 0.6458333333333334 0.1875 0.16666666666666666 48
Use finally to unlock 0.8 0.125 0.075 40
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