As the preferred language for software development, java has also become the object of learning. Learning java, choosing a java training institution is the best way.
So what do you mainly learn when you study java in a training institution? Many friends who want to learn Java in the primary stage of IT industry always ask what Java should learn.
Today's java course/Let's take a look at how an 8-year veteran of Java development introduced the main sub-content of learning Java: 1, Java grammar.
You can learn the basic grammar of Java through any book that introduces Java.
Never think that you can learn Java grammar just because you can write all the examples and programs in the book.
If you really want to master it, you still need to do a lot of test questions.
Incorrect understanding of grammar will lead to logical errors in code.
And these mistakes will make you suffer in real project development: write when you feel right.
It is very difficult to find a few lines of code with logical errors among hundreds of thousands of lines of code.
2. general class.
Never write code that others have already implemented.
JDK's existing courses can accomplish many functions.
You need to be familiar with JDK. By studying the JDK help documentation and JDK source code, you can gradually understand where all the classes you need are.
On the one hand, we should be familiar with the resources that can be used directly; On the other hand, learn how SUN engineers write code.
3.IDE integrated development environment.
Now the most commonly used enterprises are IBM's eclipse, as well as JBuilder, Idea, NetBeans and so on.
After all, only 5% top experts are writing Java code with simple text editors.
Most programmers are using these things.
4. Database.
MySql，Oracle，DB2。 Most small projects use free databases such as MySql.
Larger projects will consider using Oracle or DB2.Java, and projects rarely use SqlServer.
Therefore, you still need to learn some knowledge about databases.
You can start with SQL language.
These databases all support standard SQL. Learn the basic SQL and refer to the specific database manual to complete the general project development.
Of course, if you want your program to run more efficiently, you need to study more deeply.
Most program optimization starts from this part.
5.JDBCJava database connection.
Operate database with Java program.
This part is very important.
Almost all enterprise projects will use it.
6、HTMLCSSJava .
Hypertext markup language.
CSS-cascading style sheets.
Java-is a scripting language developed from Netscape's Live.
Accurately speaking, these things have little to do with the Java language itself.
However, at present, most enterprise projects are B/S structure.
So our Java programs will have many opportunities to deal with them.
Need to prepare in advance.
7. You need to learn how to use and manage the network server.
For example, tomcat, and know how to extend and maintain WEB programs based on it, and how to use its additional services, such as connection pooling.
8、JSPServlet .
These two are the basic skills that junior Java programmers must master, and they are the foundation of all B/S structural frameworks.
Therefore, it is necessary to study EL, JSTL(StandardTagLibraries) and optional third-party tag libraries to improve the processing capacity of the presentation layer.