Java

Tipo, literais, operadores e fluxo de controle JSE JAVA ESSENCIAL

Operadores e controle de fluxo da execução ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operadores ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Precedência ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Literais de caracteres em Java

Atribuição ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Passagem de valores via atribuição (...) 1: char letraPri = 'a'; 2: char letraPri2 = letraPri; 3: letraPri = 'b'; (...) (...) 4: Letra letraObj = new Letra(); 5: letraObj.c = 'a'; 6: Letra letraObj2 = letraObj; 7: letraObj2.c = 'b'; (...) public class Letra { public char c; }

Operadores matemáticos ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Incremento e decremento ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operadores relacionais ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operadores lógicos ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operadores orientados a bit ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operadores de deslocamento ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operador tenário (if-else) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operador de concatenação ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

instanceof ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conversão de tipos primitivos ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],byte short int char long float double byte b = 10; char c=‘A’; short s = 20; float f= 12.3f; int i = 100; long m = 200L; double d=12.3;

Conversão de referências ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Operadores de coerção ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],operador de coerção (cast)

Promoção ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],a partir daqui só o sinal '+' é permitido! cast é essencial aqui! Observe os parênteses! promovidos para int!

Controle de execução ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

true e false ,[object Object],[object Object],[object Object],[object Object],[object Object]

if-else ,[object Object],[object Object]

return ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Este exemplo funciona como um if com else :

While e do-while ,[object Object],[object Object],loop infinito

for ,[object Object],[object Object],loop infinito

break e continue ,[object Object],[object Object],[object Object],[object Object]

break e continue com rótulos ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],ident: do {...} ou ident: while () {...} ou ident: for () { ...}

switch (case) ,[object Object],[object Object],qualquer expressão que resulte em valor inteiro (incl. char) Char letra

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