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Title: Java OOP: Understand Classes and Objects

Description: Grasp the concepts of classes and objects in Java with these 17 questions and answers.

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1. What is a class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#WhatIsClass
2. What is structure of a class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#ClassStructure
3. What is an object?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#WhatIsObject
4. How many objects can you create?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#ObjectCreation
5. Where are objects stored?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#ObjectMemory
6. Do you need to destroy objects?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#DestroyObject
7. What is a top-level class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#TopLevelClass
8. Can you mark a class as static?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#StaticClass
9. Which modifiers can you apply for a top-level class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#ModifiersTopLevelClass
10. What is a nested class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#NestedClass
11. What is an inner class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#InnerClass
12. What is an abstract class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#AbstractClass
13. What is a final class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#FinalClass
14. How can you create a new instance of an inner class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#CreateInnerClassInstance
15. What is a static nested class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#StaticNestedClass
16. What is a method-local inner class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#MethodLocalInnerClass
17. What is an anonymous inner class?https://codejava.net/java-core/the-java-language/java-oop-understand-classes-and-objects#AnonymousInnerClass
this articlehttps://codejava.net/java-core/the-java-language/java-default-initialization-of-instance-variables-and-initialization-blocks
new keywordhttps://codejava.net/java-core/the-java-language/new-keyword
statichttps://codejava.net/java-core/the-java-language/java-keyword-static
publichttps://codejava.net/java-core/the-java-language/public-keyword
abstracthttps://codejava.net/java-core/the-java-language/abstract-keyword
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Java Static Nested Classes and Inner Classeshttps://codejava.net/java-core/the-java-language/what-is-nested-classes-in-java-static-nested-classes-and-inner-classes
Understand abstraction in Javahttps://codejava.net/java-core/the-java-language/what-is-abstraction-in-java-the-why-and-the-truth
Understand encapsulation in Javahttps://codejava.net/java-core/the-java-language/what-is-encapsulation-in-java-the-what-why-and-how
Understand inheritance in Javahttps://codejava.net/java-core/the-java-language/what-is-inheritance-in-java-the-what-why-and-how
Understand polymorphism in Javahttps://codejava.net/java-core/the-java-language/what-is-polymorphism-in-java-the-what-how-and-why
9 Rules about Constructors in Javahttps://codejava.net/java-core/the-java-language/9-rules-about-constructors-in-java
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12 Rules of Overriding in Java You Should Knowhttps://codejava.net/java-core/the-java-language/12-rules-of-overriding-in-java-you-should-know
10 Java Core Best Practices Every Java Programmer Should Knowhttps://codejava.net/coding/10-java-core-best-practices-every-java-programmer-should-know
Understand Interfaces in Javahttps://codejava.net/java-core/the-java-language/everything-you-need-to-know-about-interfaces-in-java
Java Variables: Passed by Value or Reference?https://codejava.net/java-core/the-java-language/java-variables-passing-examples-pass-by-value-or-pass-by-reference
Understand Java access modifiershttps://codejava.net/java-core/the-java-language/java-access-modifiers-examples-public-protected-private-and-default
Understand Java package and import statementshttps://codejava.net/java-core/the-java-language/everything-you-need-to-know-about-java-packages-and-import-statements
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