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This article shows you what the object invocation member variables and member instance methods are in java. The content is concise and easy to understand, which will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Use objects to access members of a class:

Object name. Member variable

Object name. Member method ()

Default values for member variables:

Specific example code:

Public class StudentTest_01 {public static void main (String [] args) {/ / create object format, class name object name = new class name (); / / No parameter use method Student S2 = new Student (); s2.setName ("thousand fathom 1"); s2.setAge (25); System.out.println ("name:" + s2.getName ()); System.out.println ("Age:" + s2.getAge ()) System.out.println ("-"); / / use method Student s = new Student ("thousand fathom 2", 23) with parameters; System.out.println ("name:" + s.getName ()); / / null System.out.println ("age:" + s.getAge ()); / / 0 System.out.println ("-"); / / call member method s.study (); s.eat () }}

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