12Consider the following partial class with constructor: public class Filename {

Question

12Consider the following partial class with constructor:

public class Filename {
    private String fullPath;
    private char pathSeparator,
                 extensionSeparator;

    public Filename(String str, char sep, char ext) {
        fullPath = str;
        pathSeparator = sep;
        extensionSeparator = ext;
    }

Which statement could be used to create an object of the Filename class?

16java.util.Arrays class contains which of the following methods?

17Consider the following class. Which of the following is a good reason for declaring numberOfBicycles with the static keyword?

public class Bicycle {

    private int cadence;
    private int gear;
    private int speed;
    private int id;
    private static int numberOfBicycles = 0;
        ...
}

18Consider the following class:

public class Bicycle {

    private int cadence;
    private int gear;
    private int speed;
    private int id;
    private static int numberOfBicycles = 0;

    public Bicycle(int startCadence, int startSpeed, int startGear){
        gear = startGear;
        cadence = startCadence;
        speed = startSpeed;

       id = ++numberOfBicycles;
    }

  
    public int getVar() {
        //TODO return a variable
    }
    

    public static int getVariable() {
        //TODO return a variable
    }

}

Which of the following return statements should be used in the getVar and getVariable methods?

public static int getVariable() {
        return numberOfBicycles;
    }

public static int getVariable() {
        return id;
    }

public static int getVariable() {
        return numberOfBicycles && id;
    }

public static int getVariable() {
        return id;
    }

19A GUI is a user interface that provides graphical two-way communication between the user and the application.

True
False

20Which of the following are steps in Task Centered GUI Design?

A. Filename myHomePage = new Filename(FPATH, '/', '.'); B. Filename myHomePage = new Filename(); C. Filename myHomePage = new Filename(FPATH); D. All of the above

Explanation / Answer

Please find the answers below :

12)

A.Filename myHomePage = new Filename(FPATH, '/', '.');

16)

All methods A,B,C,D are present

17)

B)

18)

a) public int getVar() {
        return id;
    }
    

public static int getVariable() {
        return numberOfBicycles;
    }

19)

TRUE

20)

A.Filename myHomePage = new Filename(FPATH, '/', '.');

16)

All methods A,B,C,D are present

17)

B)

You need a variable that can store the total number of bicycles that is unique to a particular instance of this class, but can be accessed and modified by any method of this class.

18)

a) public int getVar() {
        return id;
    }
    

public static int getVariable() {
        return numberOfBicycles;
    }

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