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This article mainly explains "what is the syntax for the use of java generic classes". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what is the syntax for the use of java generic classes".

1. Grammar

Class name object name = new class name ()

2. After Java1.7, there is no need to write after new. Generic classes do not support basic data types

Class name object name = new class name ()

Example

Public class ManTest {public static void main (String [] args) {/ / specify a specific data type for the generic identity when creating the object. Here I specify String Gneeric gneeric=new Gneeric ("adawddwadwa"); String key1 = gneeric.getKey (); System.out.println ("Key1=" + key1); / / Key1=adawddwadwa Gneeric gneeric1=new Gneeric (123); int key2=gneeric1.getKey () System.out.println ("key2=" + key2); / / key2=123 / / generic class does not specify a data type when creating an object and will operate Gneeric gneeric2=new Gneeric ("awewaea") according to the object type; Gneeric gneeric3=new Gneeric (12121); Object key4 = gneeric3.getKey () }} Thank you for your reading, the above is the content of "what is the syntax for the use of java generic classes". After the study of this article, I believe you have a deeper understanding of what is the syntax for the use of java generic classes, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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