Homework Assignment

COMP 274Week 2 Homework Assignment

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COMP 274Week 2 Homework Assignment

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COMP 274Week 2 Homework Assignment Create a Word document containing the answers to all the problems given below. Can you access an instance variable from a static method? Explain why or why not. Can you access a static variable from an instance method? Explain why or why not. Consider the case where you have two classes, Class and Class, such that Class contains a member variable defined as ClassBmyBobj.

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Class contains a constructor which takes a String parameter. Class provides a constructor which accepts a String parameter which is to be provided to my obj. What needs to be done to initialize the Class member variable with the value from the Class constructor? Here are some class definitions with questions that follow. Public class Base Class {// methods of Base Class} public Some Class extends Base Class {// methods of Some Class} Some Class scab = new Some Class (); BaseClassbcobj = scab; Some Class scobj2 = cob; bob.

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A Method of Some Class (); // does not exist in Base Classis statement b above legal, or is casting required? Statement c is trying to assign the Some Class object referred to by bob to a Some Class reference variable scobj2. What is wrong with this statement and how would you fix it. In statement d, a Base Class reference is trying to access a Some Class method that is not part of Base Class. Is this legal? Explain.

Homework, Assignment

COMP 274Week 2 Homework Assignment

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