INTERVIEW QUESTIONS J2EE JAVA DETAILS

Question: What is the order of intialization of variables in Java.

Answer: When an object is created, all its fields are set to default initial values for their respective types(zero for all numeric types, false for boolean, u000 for char, and null for object reference.)

Then the constructor is invoked. Each constructor has 3 phases.

1. Invoke a superclass's constructor
2.Initialize the fields using their initializers and any initialization blocks.
3.Execute the body of the constructor.

When an object is created, all its fields are set to default initial values for their respective types(zero for all numeric types, false for boolean, u000 for char, and null for object reference.)

Then the constructor is invoked. Each constructor has 3 phases.

1. Invoke a superclass's constructor
2.Initialize the fields using their initializers and any initialization blocks.
3.Execute the body of the constructor.
Source: CoolInterview.com

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