What are the three forms of java annotations?

The three forms of java comments are: 1. Single-line comments, such as [//single-line comments]; 2. Multi-line comments, such as [/*multi-line comments*/]; 3. Document comments, like【/**@author*/】.

JAVA comments have three forms: single-line comments, multi-line comments, and document comments.

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1. Single-line comment

public class  online{
	public static void main(String[] args) {
		//这是一个单行注释
		System.out.println("Hello World!");
	}
}

2. Multi-line comment

public class  online{
	public static void main(String[] args) {
		/*
		这是一个多行注释
		*/
		System.out.println("Hello World!");
	}
}

3. Documentation comments

public class  online{
	public static void main(String[] args) {
		/**
		@author a_hasaigei
		@version 1.0
		这是一个文档注释
		是用来生成帮助文档的
		文档注释，是一种特殊的多行注释
		*/
		System.out.println("Hello World!");
	}
}

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