Chapter 2 Learning Java language fundamentals exercises: 1.What  is Unicode? Unicode is a computing industry standard for consistently encoding,representing,and handling text that's expressed in most of world's writing system 2.What is a comment? A c…

Java™ Platform, Standard Edition 8 API Specification http://docs.oracle.com/javase/8/docs/api/ The Java® Language Specification http://docs.oracle.com/javase/specs/jls/se8/html/index.html The Java® Virtual Machine Specification http://docs.oracle.com…

2016.11.30 1).About the Java Technology 2).The Java Language Environment: Contents…

The Java Language Specification, Java SE 8 Edition HTML | PDF The Java Virtual Machine Specification, Java SE 8 Edition HTML | PDF…

1.在系统上安装一个版本的gradle,用`gradle init --type java-application`创建一个默认的java项目,假设项目目录是hellojava 2.vscode写java首先要安装Java Extension Pack(下面简称JEP),这个扩展会自带两个依赖项安装,一个是Debugger for java,还有一个的language support for java by red hat,这些是利用Eclipse的JDT实现的java语言支持 然后把hello…

Java Language Keywords 典型题目 true.false.null.sizeof.goto.synchronized 哪些是Java关键字?(goto.synchronized) 关键字列表 参考资料 https://docs.oracle.com/javase/tutorial/java/nutsandbolts/_keywords.html https://www.nowcoder.com/questionTerminal/dc5651a872ff44a187afd703…

回答一个问题:多线程场景下,有时一个线程对shared variable的修改可能对另一个线程不可见.那么,何时一个线程对内存的修改才会对另一个线程可见呢? 基本的原则: 如果 读线程 和 写线程 不进行同步,就不能保证可见性 地址:Oracle -- Java Language Specification -- Chapter 17. Threads and Locks  阐述了Java 内存模型下多线程程序的 Semantics 已经有人翻译好了: 深入分析 java 8 编程语言规范:Th…

Java is using Unicode set Java is case sensitive Comments, C/C++ style abstract, const, final, int, public, throw, assert, continue, finally, interface, return, throws, boolean, default, float, long, short, transient, break, do, for, native, static,…

Java characteristics: Java .class files are machine-independent, including the endianness. Java .class files are not optimized .class files comprises "bytecode" different from "interpreted languages" in an additional step javac (source…

在线地址: https://docs.oracle.com/javase/specs/ java语言规范下载: 链接:http://pan.baidu.com/s/1miEpJwk 密码:f89v java的各种规范(JSRs by Platform):https://jcp.org/en/jsr/platform?listBy=2&listByType=platform java平台,SE 8 文档:http://docs.oracle.com/javase/8/ oracle的帮助中心:ht…