Comm sense of JDK & eclipse

JDK includes the following basic components:

Javac-compiler

Convert to bytecode

Jar-packaging tool to package related class files into one file

Javadoc-document builder, which extracts documents from source code comments

Jdb-debugger, error checking tool
　

Java-run the compiled Java program (. Class suffix)

Appletviewer: applet Browser

, An HTML file

Java browser of the Java applet.

Javah: generate the C process that can call the Java Process, or create the header file of the C process that can be called by the Java program.

Javap: Java anti-assembler that displays the accessible functions and data in the compilation class file and the byte code.

Meaning.
　　

Jconsole: a Java tool for system debugging and monitoring

JDK and Eclipse:

 

JDK and JRE are separated. Running a Java program has nothing to do with JDK. A common client can run a Java program after JRE is installed. JDK is a development tool and package provided for developers.
Including class libraries provided by Sun and some compilation and debugging tools. These tools can be used for Java Development under DOS. To run these tools, you need to install JRE. JDK can only generate. class files.
. JRE provides the runtime environment.

Eclipse replaces your work in DOS and provides a friendly interface. In fact, you still need to use the support provided by JDK. Without JDK, you cannot install or run eclipse.

 

BTW:

In the eclipse environment today, I want to find out how to compile a link similar to vc6.0 and modify it. save the Java file and find the corresponding. the class file is also modified (find. mmin-1: Check the file modified in the last minute.) I don't know. I checked it online. It seems that I just saved it and completed the compilation process ......