AVAJAVA Web Tutorials

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Classes and Objects: 14 tutorials

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Classes and Objects Tutorials


In Java, a class serves as a template for an object, an instance of that class. A class encapsulates certain behaviors and state. The tutorials on this page focus on performing various tasks on Java classes and objects, often involving reflection.
  1. What's a quick way to output the fields of an object?
  2. How do I instantiate an object of a class via its String name?
  3. How do I determine the class name of an object?
  4. How do I list the declared methods of a class?
  5. How do I list the public methods of a class?
  6. How do I call a method using reflection?
  7. How do I call a declared method using reflection?
  8. How do I list the declared fields of a class?
  9. How do I list the public fields of a class?
  10. How do I get and set a field using reflection?
  11. How do I get and set a declared field using reflection?
  12. How do I list the constructors of a class?
  13. How do I create an object via its multiparameter constructor using reflection?
  14. What is the instanceof operator and how do I use it?
 
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