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Java 9 - Improved JavaDocs
Java documentation can be generated using javadoc tool. It currently generates documentation in html 4.0 format. In java 9, we can generate documentation in html 5 format by using -html5 option in command line arguments.
Old style java documentation
Consider the following code in C:/JAVA folder.
Tester.java
/** * @author MahKumar * @version 0.1 */ public class Tester { /** * Default method to be run to print * <p>Hello world</p> * @param args command line arguments */ public static void main(String []args) { System.out.println("Hello World"); } }
Now run the javadoc tool of jdk 7 to generate documentation.
C:\JAVA>javadoc -d C:/JAVA Tester.java Loading source file tester.java... Constructing Javadoc information... Standard Doclet version 1.7.0_21 Building tree for all the packages and classes... Generating C:\JAVA\Tester.html... Generating C:\JAVA\package-frame.html... Generating C:\JAVA\package-summary.html... Generating C:\JAVA\package-tree.html... Generating C:\JAVA\constant-values.html... Building index for all the packages and classes... Generating C:\JAVA\overview-tree.html... Generating C:\JAVA\index-all.html... Generating C:\JAVA\deprecated-list.html... Building index for all classes... Generating C:\JAVA\allclasses-frame.html... Generating C:\JAVA\allclasses-noframe.html... Generating C:\JAVA\index.html... Generating C:\JAVA\help-doc.html...
It will create the java documentation page in C:/JAVA directory and you will see the following output.

New java documentation with Search and HTML5 support
Run the javadoc tool of jdk 9 with -html5 flag to generate new type of documentation.
C:\JAVA> javadoc -d C:/JAVA -html5 Tester.java Loading source file Tester.java... Constructing Javadoc information... Standard Doclet version 9.0.1 Building tree for all the packages and classes... Generating C:\JAVA\Tester.html... Generating C:\JAVA\package-frame.html... Generating C:\JAVA\package-summary.html... Generating C:\JAVA\package-tree.html... Generating C:\JAVA\constant-values.html... Building index for all the packages and classes... Generating C:\JAVA\overview-tree.html... Generating C:\JAVA\index-all.html... Generating C:\JAVA\deprecated-list.html... Building index for all classes... Generating C:\JAVA\allclasses-frame.html... Generating C:\JAVA\allclasses-frame.html... Generating C:\JAVA\allclasses-noframe.html... Generating C:\JAVA\allclasses-noframe.html... Generating C:\JAVA\index.html... Generating C:\JAVA\help-doc.html...
It will create the updated java documentation page in D:/test directory and you will see the following output.

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