head first java second edition phần 8 ppt

... has expired . For example, if you tell your thread to sleep for two seconds (2,000 milliseconds), that thread can never become the running thread again until sometime after the two seconds have passed. networkIng and threads The"fhread scheduler makes all the decisions about who runs and who doesn't. lIe usually makes the threads take turns, nicely. But there's no guarantee abo...

Ngày tải lên: 12/08/2014, 19:20

... new Foo(); Foo c = a; 86 chapter 4 primitives and references Primitive Types Integer byte 8 bits -1 28 to 127 short 16 bits -327 68 to 32767 int 32 bits -2147 483 6 48 to 2147 483 647 long 64 bits -huge ... : • It must start with a letter, underscore U, or dollar algn ($). You can't atart a name with a number. • After the first character, you can u numbers as well. Just don&ap...

Ngày tải lên: 12/08/2014, 19:20

... have. I. 6. Down 7. 2 9. 3. 12. 4. 13. 5. 14. 8. 16. 10. 17. II. 19. 15. 21. 16. 22 18. 23. 20. 24. 21. 164 chapter 6 Ready-bake: GameHelper import java. io.*i import java. util.·: pUblic class GamaBelper This ... by magic, there really Is such a thing. But it's not an array, it's an ArrayLisf. A class in the core Java library (the API). The java Standard Edition (which...

Ngày tải lên: 12/08/2014, 19:20

... ; You'll get a runtime exception: % java Wrappers Exception in thread "m ain N java .lang.NumberFormatException: two at java. lang.lnteger.parselnt(Integer .java: 409) at java .lang .lnteger.parselnt(Integer .java: 4 58) at Wrappers.main(Wrappers .java: 9) 292 chapter 10 Every method or constructor that parses a String can throw a NumberFormatExceptlon. It's a runtime...

Ngày tải lên: 12/08/2014, 19:20

... it as text: -l.uGa.meoharaot -"'~ava/1anIJ 8t:rIDSi [weapoQt Nava/lang/ 8t:r'lDS;QBtlfUrl:I 4java. Jant.8t:rln4; uvA. i{Gzptbowt8wordtdUSUq - nt'l'rolluq-tb are h.Ilndabig IIDq - ztMagloiaDuq-tepe u.tInvialbWty • Option ... of text. one per character, separating the pieces of state with commas: 80 .mt,bow, lJWQrcl,dlUt 8OO,Troll,bare banlb,big ur: 18O,Megictl n ,ape...

Ngày tải lên: 12/08/2014, 19:20

... trlg 23. Yes or no 38. JNLP format 15. Flatten 33.Atomic It 8 6. Be brave 24. Java jackets 39. VB's final 17. Encapsulated returner 35. Goodasnew 7. Arrangewell 26. Not behavior 40. Java branch 18. Shipthisone 37. Pa irsevent 8. Swing slang 28. Socket's suite 21 . ... you need an enterprise applil;atUm server . In java, that means a java 2 Enterprise Edition 02EE)...

Ngày tải lên: 12/08/2014, 19:20

... a chance on this, and h elping to shape the Head First concept into a book (and series) . As this second edition goes to print there are now five Head First books, and he's been with us all the way. To Tim O'Reilly, ... 79 Encapsulation (do it or risk humiliation) 80 Using references in an array 83 Exercises and puzzles 88 how to use this book We tlUn1 of a "!...

Ngày tải lên: 12/08/2014, 19:20

... Stop % java TestObject false File Edit Window Help Faint % java TestObject class Cat Cat c = new Cat(); System.out.println(c.hashCode()); hashCode() 3 File Edit Window Help Drop % java TestObject 82 02111 Cat ... new Dog(); c = new Canine(); c.roam(); } } File Edit Window Help BeamMeUp % javac MakeCanine .java MakeCanine .java: 5: Canine is abstract; cannot be instantiated c = n...

Ngày tải lên: 12/08/2014, 19:20

... to change the instrument and note . Experiment by passing in two int values from 0 to 127. The first int sets the instrument, the second int sets the note to play. import javax.sound.midi.*; ) 1/ c los e mai.n public void play(int instrument, int note) { try Sequencer player = MidiSystem.getSequencer(); player.open(); Sequence seq = ... new Sequence(Sequence.PPQ, 4); Track track = seq.cre...

Ngày tải lên: 12/08/2014, 19:20

... that's making the compiler fail? %javac Jukebox3 .java JukeboK3 .java: 15 : cannot find symbol symbol method sort (java .util.ArrayList<Song» location: class java. util .Collections Collections.sort(songList); 1 error And of course yOll probabl y ... with only one method to implement java. lang.Comparable public interface COIIIp&rahle<T> int compareTo(T O)i And the meth...

Ngày tải lên: 12/08/2014, 19:20