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This article will explain in detail how to use the identifiers in Java. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

/ * naming rules for identifiers: 1. It is made up of letters, numbers, a descending line _ and the dollar sign $. You can't start with a number 3. Case sensitive 4. Cannot be the reserved keyword of java 5. It is best to see the meaning of the name * / public class Identifier {public static void main (String [] args) {/ / cannot start with a number / / int 1 number 1; / / the identifier distinguishes between uppercase and lowercase int bread2; int Back3; System.out.println (b); System.out.println (B) / / reserved keyword that cannot be java / / int class=4; / / Age is best known as Sishi int age=30; / / two strings are concatenated with a plus sign + System.out.println ("Age is:" + age) }} this is the end of the article on "how to use identifiers in Java". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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