Question about constructors in Java

Question

I have a few questions regarding Java constructors

• Can a constructor be closed? If so, in what condition?
• Is the method constructor or not?
• If the constructor returns nothing, then why do we call a new object each time?
• What is the default access modifier of the constructor, if we do not specify.

Edit

The answers for 1 and 3 are very clear. I am still not sure about 2 and 4, since I have different answers for them.

Answer 1

• Yes, anyway. However, if all the constructors for the class are private, this means that the class cannot be directly created. To create object instances you will need to use something like Factory Pattern .
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• Java , . ( : http://www.javabeginner.com/learn-java/introduction-to-java-access-modifiers : http://download.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html)

Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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• because the constructor is being called new. What the object returns new, the constructor simply sets the internal state.
• Public