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Exam 7: Object-Oriented Design

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Question 41

Multiple Choice

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The activities of the development cycle are generally thought to

A) be strictly linear
B) be rigidly ordered
C) overlap
D) have optional steps
E) both A and B are True

F) A) and B)
G) A) and C)

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Question 42

Multiple Choice

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In order to implement Comparable in a class, what method(s) must be defined in that class?

A) equals
B) compares
C) both lessThan and greaterThan
D) compareTo
E) both compares and equals

F) D) and E)
G) B) and D)

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Question 43

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Provide a reason why a method would be declared static.

The most important decisions regarding the development of a system are made during the implementation phase while code is actively being written.

During program development, software requirements specify

In which phase of program development would you expect the programmer(s) to create the pseudocode?

For the questions below, consider a class called ChessPiece. This class has two instance data, String type and int player. The variable type will store "King", "Queen", "Bishop", etc and the int player will store 0 or 1 depending on whose piece it is. We wish to implement Comparable for the ChessPiece class. Assume that, the current ChessPiece is compared to a ChessPiece passed as a parameter. Pieces are ordered as follows: "Pawn" is a lesser piece to a "Knight" and a "Bishop", "Knight" and "Bishop" are equivalent for this example, both are lesser pieces to a "Rook" which is a lesser piece to a "Queen" which is a lesser piece to a "King." -Which of the following would not be considered an algorithm?

The idea of having programmers and developers meet in order to critique a software design or implementation is known as

To implement Comparable for the ChessPiece class, the current ChessPiece's type is compared to a ChessPiece passed as a parameter. The method should return 0 if the types are equal, -1 if this piece's type is a lesser piece than the parameter's type, and 1 if this piece's type is a greater piece than the parameter's type. Pieces are ordered as follows: "Pawn" is a lesser piece to a "Knight" and a "Bishop", "Knight" and "Bishop" are equivalent for this example, both are lesser pieces to a "Rook" which is a lesser piece to a "Queen" which is a lesser piece to a "King." Write the proper method to implement Comparable for this class.

Formal parameters are those that appear in the method call and actual parameters are those that appear in the method header.

All parts of a container in BorderLayout must be used.

Having multiple class methods of the same name where each method has a different number of or type of parameters is known as

Which of the following methods is a static method? The class in which the method is defined is given in parentheses following the method name.

Write a set of code that will allow a user to select an input image and then place this image in a JLabel lab1 and add lab1 to a JPanel as the northern component in a JFrame using BorderLayout. The JFrame has already been instantiated as jf and the BorderLayout already established. Hint: a JFileChooser returns a File and JLabel requires the String name of a file as an argument. A File can return its name using File class' method getAbsolutePath( )

The idea that an object can exist separate from the executing program that creates it is called

In order to create a constant, you would use which of the following Java reserved words?