Introducere In Java Jx

Introducere in Daniel Nastase, trainer LEC

Agenda De ce JavaFx ? Bazele limbajului JavaFx (din perspectiva unui developer de Java) Aplicatie construita de la 0 Resurse

Integrare java – backend Portabilitate Suport CSS & Softuri editare grafica vs Java – PRODUCTIVIATE

Variabile Variabilele nu au tip ! def numeConstanta = 0 var numeVariabila = “text” numeVariabila = 90 def numOne : Number = 1.0 def numTwo : Integer = 1

String def nume = ‘Daniel’; var s = “Salut {nume}”; def s1 = “acesta este un text” def s2 = ‘acesta este alt text’ Nu mai trebuie comparate folosind metoda equals(String) ! concatenare

Tipul de date duration 5ms; // 5 milsecunde 10s; // 10 secunde 30m; // 30 minute 1h; // 1 ora

function add(argOne: Integer, argTwo: Integer) : Integer { result = argOne + argTwo; println("{argOne} + {argTwo} = {result}"); return result; } Functii

Sequences (arrays) def zile = ["Mon","Tue","Wed","Thu","Fri"]; def zileSapt = [ zile , ["Sat","Sun"]]; reuniune def num = [1..100]; definire interval def numMaiMariCa2 = nums[n | n > 2]; conditie var lungime = sizeof zile; aflare lungime insert "Tue" into zile ; adaugare element insert "Thu" before zile [2]; delete "Sun" from zile ; eliminare element delete zile [0]; delete zile ;

Sequences (arrays) def seq1 = [1,2,3,4,5]; def seq2 = [1,2,3,4,5]; println(seq1 == seq2) ; true def seq1 = [1,2,3,4,5]; def seq2 = [1,3,2,4,5]; println(seq1 == seq2); false seq[a..b] seq[a..]

Structuri de control if else for while throw - cath - finally var s = "The answer is {if (answer) "Yes“ else "No"}"; // s = 'The answer is Yes' – expresii embedded

Replace Triggers & Bind Replace Triggers var password = “ test1 " on replace oldValue { println("\nALERT! Parola s-a schimbat !"); println(“ Val veche : {oldValue}"); println(“ Val noua : {password}"); }; password = “ test2 "; Bining password = "bar"; var x = 0; def y = bind x; x = 1; println(y); // y este acum 1 x = 47; println(y); // y este acum 47

“Constructorul” class Address { var street: String; var city: String; var state: String; var zip: String; } class Customer { var firstName: String; var lastName: String; var phoneNum: String; var address: Address; } def customer = Customer { firstName: "John"; lastName: "Doe"; phoneNum: "(408) 555-1212" address: Address { street: "1 Main Street"; city: "Santa Clara"; state: "CA"; zip: "95050"; } }

Noi modificatori de acces public private protected defaults public-read public-init

Mostenire multipla !!! mixin class MyNameMixin { var firstName = "John"; var lastName = "Doe"; function printName(){ println("My name is: {firstName} {lastName}");} } mixin class MyAddressMixin { var address = "1 Main Street, Anytown USA"; function printAddress(){ println("My address is: {address}");} } class MyContact extends MyNameMixin, MyAddressMixin { }

Doua metode cu aceasi semnatura ? Initial se verifica daca metoda apelata exista in clasa curenta, iar daca nu exista va fi apelata metoda primului parinte din declaratia clasei. class MyContact extends MyNameMixin , MyAddressMixin { }

http://java.sun.com/javafx/1.2/docs/api/

Introducere In Java Jx

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