Java-Object-Oriented programming (last book) one or two chapter summary

The original Java:java's father (Jams Gosling) Java was developed by sum Company in May 1995! Java is a language, a language for people to communicate with computers.

The development of computer language: assembly language-c/c++ Linguistic-java language

Java technology is divided into the following two types: Java programming language and Java platform. Its language features: 1. Cross-platform 2. Object-oriented 3. Security 4. Multithreading 5. Easy to use. Platform: Refers to the hardware or software environment in which the program runs. The Java platform has two components: Java Virtual machine and Java application programming port (Java API). The Java platform can be divided into 3:1.javaSE 2.javaEE 3.javaME. Successfully installed and configured the Javase.

Proficient in Java source program editing, Java program compilation and running Jdk:java Development toolset. Includes the Java compilation environment for the debug environment. Jre:java's operating environment, including the Java Virtual machine Core class library.  Java's common development tools are: Eclipse and my eclipse. IDE Integrated development tools

Java program execution steps: Source code-Intermediate Code-jvm-Platform code-run. Java source files (. java files) Java bytecode files (. class files) Understand the structure of the first Java program and the meaning of the code.

Java base language: 1. Learn what keywords and poo keywords are.  2. Recognize what is the correct name for identifiers and identifiers. Basic data types, variables, constants for 3.java. Java's data types are divided into basic types and reference types, where the basic types are: Byte, short, int, long, float, double, and understand their basic usage and meaning in a statement. Variable: The memory space used to hold the data, the spatial data can be changed, understand the syntax structure of the variable and the role in the statement. Constant: The memory space used to hold the data, the data of that space cannot be changed, and the difference between constants and variables and their different roles in the statement!

The above is the first to second chapter of the Java Basic classroom knowledge, seemingly not much but many of the concept is still need to slowly scrutinize and contact to understand the principle! Generally speaking feel can accept, the teacher said the book content can understand understand, class homework These can also be completed independently, although do when still a little rusty but fortunately can find a way to solve in time. In the future study must keep in mind the teacher's teaching more thinking more practice, independent completion of homework! There is nothing impossible to do is to see if you would like to do---------

Java-Object-Oriented programming (last book) one or two chapter summary