Understanding Java Object Life Cycle

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Questions and Answers

At what stage does Java allocate memory for the object and memory for the object reference variable?

  • Stage 4
  • Stage 5 (correct)
  • Stage 6
  • Stage 7

When is the constructor of a class called in Java?

  • After allocating memory for the object (correct)
  • Before allocating memory for the object
  • Every time the object is accessed
  • After removing the object from memory

When does the Java runtime call the garbage collector to destroy objects?

  • Every time the object reference variable is removed
  • When the object is no longer in use (correct)
  • After calling the constructor of the class
  • After allocating memory for the object

In Java, when does an object 'die' according to the text?

<p>When the accessing of field and methods are completed (B)</p> Signup and view all the answers

What happens when you run the main method in a class in Java?

<p>The class is initialized because the main method is static (A)</p> Signup and view all the answers

What is the first step in the life cycle of an object in Java?

<p>Creation of the object on disk (A)</p> Signup and view all the answers

When a Java class is compiled, what is it transformed into?

<p>Byte code (A)</p> Signup and view all the answers

What is the role of the Java classloader in the life cycle of an object?

<p>Loading the class into memory (C)</p> Signup and view all the answers

Where do initialized static members of a class belong in Java?

<p>They belong to the class itself and are shared by all objects created from the class (A)</p> Signup and view all the answers

When can a class be initialized in Java?

<p>When you access a static field or static method of the class (A)</p> Signup and view all the answers

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