August 2026
Intermediate
538 pages
15h 38m
Portuguese (Portugal, Brazil)
book
Java em poucas palavras (Portuguese Edition), 9th Edition
by Benjamin J. Evans, Jason R. Clark, David Flanagan
Content preview from Java em poucas palavras (Portuguese Edition), 9th Edition
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Capítulo 2. Sintaxedo Java do zero
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Esse capítulo é bem denso, mas deve oferecer uma introdução abrangente à sintaxe do Java. Ele foi escrito principalmente para quem está começando na linguagem, mas já tem alguma experiência prévia em programação. Iniciantes determinados, mesmo sem nenhuma experiência prévia em programação, também podem achá-lo útil. Se você já conhece Java, deve achar este capítulo uma referência útil sobre a linguagem. Ele inclui algumas comparações entre Java e JavaScript, Python, C e C++, para ajudar os programadores que vêm dessas linguagens.
Dica
Se você quiser pular essa parte e começar a escrever programas simples em Java logo de cara, pode pular direto para o Capítulo 3 e usar este capítulo como referência para consultar enquanto avança nesse material.
Neste capítulo, vamos explicar a sintaxe dos programas em Java, começando pelo nível mais básico da sintaxe do Java e partindo daí, avançando para níveis cada vez mais complexos de estrutura. Vamos abordar:
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Os caracteres usados para escrever programas em Java e a codificação desses caracteres.
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Valores literais, identificadores e outros tokens que compõem um programa Java.
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Os tipos de dados que o Java pode manipular.
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Os operadores usados em Java para agrupar tokens individuais em expressões maiores.
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Instruções, que agrupam expressões e outras instruções para formar blocos lógicos ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.