Ten common misunderstandings in java language

zhaozj2021-02-11  169

Ten common misunderstandings in java language

(Liaoning Duqi Compilation)

Java language is from the Internet, which is quickly developed into a global hotspot. Its platform has no relationship imitation Buddha into solutions to merger and easy to operate and portable spirit. However, there is still no misunderstanding for the recognition of Java language.

1.java is HTML expansion

Java is a programming language, HTML is a page description language. In addition to the new version of HTML to insert JA-VA small applications in the web page, there is no one in the same way.

2.java is a temporary language that is easy to learn.

There is no way to have a strong language that is the same as Java. When it is written to show a small program, it is very difficult; but when it is really a heavy work, it is very expensive. The Java library has more than 150 types and interfaces, although there is no need for a multi-program user, but each item requires class.

3.java is a simple programming environment

Some people happy to write only with the VI editor and DBX debuggers. However, the PC and Mac programming have habitually used the type VB style drag-style set tool or integrated to open the environment, which is a group of numbers. However, once the CAFE Gate of the Syman-Tec company or the latte tool of the Borland company, Java's development time will be largely reduced.

4. Java will become a unified language of all platforms

In the spirit, this is possible. But this is not that the user has obtained the most convenient way to develop. The development of Java applications is not like (can always be unlikely) Windows that uses MFC or VB-opened Windows should be used, and Java is available in the form of graphics. We hope that the Java class library will soon become rich.

5.java is the interpretation, it is too slow to the heavy platform for special platforms.

Many compilation people have spent too much time in the class. All procedures, no argumentation, there will be enough time to test the mouse to inspect. Of course, we have not used the previous Java version to do the CPU minus. However, it is non-normal to disconnect a compiler that converts the Java intermediate code to this location.

6. All Java procedures are running in the web page

All Java Little Junction (Applet) is running in the web page. The Java scheme running in the browser is the definition of the applet. However, the Java program that is not dependent on the web browser is available, and is also commonly used. These procedures can be transferred, and they are more convenient than C than C , and it is a good choice for programming, and the first choice of learning programming. Once it and the interface tools and the data library have a combination of tools, it will be more competitive. 7. Java eliminates the need for CGI programming

Never. Under the technique of this day, CGI is still the most convenient communication point between the AP-PLET and the servers. Servers will still need CGI language to handle information sent by Applet. Of course, users can write CGI with Java language, such as with Perl or C.

8.java will thoroughly change the customer / service device calculation

this is possible. The Sun Progress has published a plan of various agricultural libraries, which will enable Java to develop guests / server applications and use Java's network class library to open network usage.

9. Use Java, users can use the $ 500 IN ┐ Ternet device to replace the current meter

This kind of recognition is that people will put abandonment, and the tools that use the way to pursue that there is no exemption and the power can be limited, it is completely unreasonable. But it is a portable assistant for the Internet. If the price is reasonable, the user is willing to use an Internet browser to choose a new smell in the meal. This is the charm of Java.

10.java will allow discarding components based on components

When people talk about parts, there are many different opinions. Java has not set up a standard in Java, as an OCX part of the GUI program. This will not be started for the ability to use CORBA interface and OpenDOC and subtilion. The test version of the CORBA interface has been found online. (Liaoningdu) translation)

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