Foothill Community College Online Portfolio
CIS27A Beginning Java Programming
Text Version of quiz results with some graded quizzes
Quiz #1
Student ID: bouyssounouse6788 (Bouyssounouse_Janine)
Time Stamp: Date: 6/29/2004, Time: 9:02 PM
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Elapsed Time: 7 minutes
Answers submitted by Bouyssounouse_Janine:
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1. a
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2. c e
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3. c
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4. b d
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5. b
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The correct answers:
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1. a
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2. c e
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3. c
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4. b d
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5. b
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Comments on Bouyssounouse_Janine's test:
1. CORRECT.
2. CORRECT.
3. CORRECT.
4. CORRECT.
5. CORRECT.
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Total Possible: 5
Calculated points for Bouyssounouse_Janine: 5
Quiz #2
Student ID: bouyssounouse6788 (Bouyssounouse_Janine)
Time Stamp: Date: 6/29/2004, Time: 9:15 PM
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Elapsed Time: 6 minutes
Answers submitted by Bouyssounouse_Janine:
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1. b c
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2. b
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3. c
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4. b d
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5. d
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The correct answers:
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1. b
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2. b
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3. c
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4. b d
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5. d
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Comments on Bouyssounouse_Janine's test:
1. (-1) The reason c shouldn't be checked is as follows:
An int can not have a decimal point
2. CORRECT.
3. CORRECT.
4. CORRECT.
5. CORRECT.
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Total Possible: 5
Calculated points for Bouyssounouse_Janine: 4
Quiz #3
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Student ID: bouyssounouse6788 (Bouyssounouse_Janine)
Time Stamp: Date: 7/10/2004, Time: 6:23 PM
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Elapsed Time: 8 minutes
Answers submitted by Bouyssounouse_Janine:
1. d ----------------- 2. b ----------------- 3. d ----------------- 4. c ----------------- 5. c -----------------
The correct answers:
1. d ----------------- 2. b ----------------- 3. d ----------------- 4. c ----------------- 5. c -----------------
Comments on Bouyssounouse_Janine's test:
1. CORRECT.
2. CORRECT.
3. CORRECT.
4. CORRECT.
5. CORRECT.
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Total Possible: 5
Your Score: 5
Your submission has been received.
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Midterm
Student ID: bouyssounouse6788 (Bouyssounouse_Janine)
Time Stamp: Date: 7/14/2004, Time: 8:11 PM
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Elapsed Time: 105 minutes
Answers submitted by Bouyssounouse_Janine:
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1. c
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2. b
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3. c
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4. d
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5. b
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6. b
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7. c
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8. a
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9. d
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10. d
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11. /**
This class accepts input for a name of an inventory
item and the count of the inventory item. It also
adds and takes away from the inventory count.
@author Janine Bouyssounouse
*/
public class InventoryItem
{
/**
Constructs a default InventoryItem
*/
public InventoryItem()
{
name = "no name";
count = 0;
}
/**
Constructs an InventoryItem
@param aName the name of the inventory item
@param aCount the number of items in stock
*/
public Pair(String aName, int aCount)
{
name = aName;
count = aCount;
}
@@@@@@@@@@@@@
This constructor should be called InventoryItem
@@@@@@@@@@@@
/**
Gets the number of items in stock
@return the count of inventory items
*/
public int getCount()
{
return count;
}
/**
Gets the name of the item
@return the name of the item
*/
public String getItemName()
{
return name;
}
/**
Computes the new inventory amount in stock after added quantity
@param numberToAdd the amount to increase the inventory quantity
*/
public void addToInventory( int numberToAdd)
{
count = count + numberToAdd;
}
/**
Computes the new inventory amount in stock after subtracted quantity
@param numberToRemove the amount to decrease the inventory quantity
*/
public void removeFromInventory( int numberToRemove)
{
count = count - numberToRemove;
}
private String name;
private int count;
} //end class InventoryItem
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12. /**
This class takes input for an integer and then
computes the sum of its digits
@author Janine Bouyssounouse
*/
public class DigitalSum
{
/**
Constructs a default DigitalSum
*/
public DigitalSum()
{
number = 0;
hundreds = 0;
tens = 0;
ones = 0;
sum = 0;
}
/**
Constructs an InventoryItem
@param aName the name of the inventory item
@param aCount the number of items in stock
*/
public DigitalSum(int aNumber)
{
number = aNumber;
hundreds = 0;
tens = 0;
ones = 0;
sum = 0;
}
/**
Breaks the number down into the hundreds digit,
the tens digit, and the ones digit and then
adds those digits together to find the sum of them
@return the sum of the digits
*/
public int getSum()
{
hundreds = number / 100;
tens = (number - (hundreds * 100)) / 10;
ones = (number - (hundreds * 100)) - (tens * 10);
return hundreds + tens + ones;
}
private int number;
private int hundreds;
private int tens;
private int ones;
private int sum;
} //end DigitalSum
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import java.io.*;
/**
This is a class that uses the DigitalSum class
to find the sum of the digits in a number
between 0 and 1000.
@author Janine Bouyssounouse
*/
public class DigitalSumTest //class definition
{
/**
Uses the methods of the DigitalSum class.
@param args not used
*/
public static void main(String[] args) throws IOException
{
InputStreamReader keyIn = new InputStreamReader(System.in);
BufferedReader reader = new BufferedReader(keyIn);
String input = "";
int number = 0;
boolean done = false;
//requires input until response is > 0 and less than 1000
while (!done)
{
System.out.print("Enter an integer between 0 and 1000: ");
input = reader.readLine();
number = Integer.parseInt(input);
@@@@@@@@@@@@@@
indent the statements in the while loop
You should indent every time you use a left brace {
@@@@@@@@@@@@
if(number > 0 && number < 1000)
done = true;
}
@@@@@@@@@@@@@@
this is a good way to do the loop -
@@@@@@@@@@@@@
//constructs a Pair object
DigitalSum dSum = new DigitalSum(number);
//gets the sum of the integers and prints it
System.out.print("The sum of the digits of " + number);
System.out.println(" is " + dSum.getSum());
} //end main method
} //end class DigitalSumTest
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The correct answers:
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1. c
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2. b
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3. c
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4. d
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5. b
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6. b
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7. c
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8. a
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9. d
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10. b
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11.
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12.
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Comments on Bouyssounouse_Janine's test:
1. CORRECT.
2. CORRECT.
3. CORRECT.
4. CORRECT.
5. CORRECT.
6. CORRECT.
7. CORRECT.
8. CORRECT.
9. CORRECT.
10. (-5) b should be checked.
(-5) d shouldn't be checked.
[Total points charged for this problem: (-2)]
11.Possible -> 100, Actual *--> 95
12.Possible -> 80, Actual *--> 80
Total non-essay possible: 20
Calculated non-essay points for Bouyssounouse_Janine -->> 18
Total outstanding essay problem points: 180
Total points awarded for word problems *---> 175
Quiz #5
Student ID: bouyssounouse6788 (Bouyssounouse_Janine)
Time Stamp: Date: 7/30/2004, Time: 8:13 PM
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Elapsed Time: 14 minutes
Answers submitted by Bouyssounouse_Janine:
1. java.lang ----------------- 2. Comparable, Serializable ----------------- 3. No, because it is final. ----------------- 4. java.lang.Object ----------------- 5. Yes, String(char[] value) ----------------- 6. Yes, String(byte[] bytes) ----------------- 7. trim() ----------------- 8. int ----------------- 9. String number = valueOf(342.75); ----------------- 10. Returns a new string resulting from replacing all occurrences of oldChar in this string with newChar. -----------------
The correct answers:
1. java.lang ----------------- 2. Comparable, Serializable ----------------- 3. No. It is a final class and can not have any subclasses. ----------------- 4. Object ----------------- 5. Yes String(char[] value) Allocates a new String so that it represents the sequence of characters currently contained in the character array argument. ----------------- 6. No. ----------------- 7. trim() ----------------- 8. int ----------------- 9. String.valueOf(342.75); ----------------- 10. Ir returns a new string resulting from replacing all occurrences of oldChar in this string with newChar. -----------------
Comments on Bouyssounouse_Janine's test:
1.(This is a word problem and will not be evaluated immediately.)
2.(This is a word problem and will not be evaluated immediately.)
3.(This is a word problem and will not be evaluated immediately.)
4.(This is a word problem and will not be evaluated immediately.)
5.(This is a word problem and will not be evaluated immediately.)
6.(This is a word problem and will not be evaluated immediately.)
7.(This is a word problem and will not be evaluated immediately.)
8.(This is a word problem and will not be evaluated immediately.)
9.(This is a word problem and will not be evaluated immediately.)
10.(This is a word problem and will not be evaluated immediately.)
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Total non-essay possible: 0
Your score: 0
There are still essay problems worth a total of 10
additional points that will be evaluated by your instructor.
Your submission has been received.
*****************************************
Final Exam
*****************************************
Student ID: bouyssounouse6788 (Bouyssounouse_Janine)
Time Stamp: Date: 7/30/2004, Time: 11:50 PM
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Elapsed Time: 8 minutes
Answers submitted by Bouyssounouse_Janine:
1. /** This class describes a product with a string name and a double price. @author Janine Bouyssounouse */ public class Product { /** Constructs a default Product */ public Product() { name = "no name"; price = 0; } /** Constructs a Product @param aName the name of the product @param aPrice the price of the product */ public Product(String aName, double aPrice) { name = aName; price = aPrice; } /** Gets the price of a product @return the price of the product */ public double getPrice() { return price; } /** Gets the name of the product @return the name of the product */ public String getProductName() { return name; } /** Allows the user to change the name of a product @param newName the new name for the product */ public void changeName(String newName) { name = newName; } /** Allows the user to change the price of a product @param newPrice the new price of the product */ public void changePrice(double newPrice) { price = newPrice; } private String name; private double price; } // end class Product ----------------- 2. /** This converts the object to a string @return objectString the object as a string */ public String objectString() { return toString(); } ----------------- 3. /** This compares the object to parameters passed @return match the true or false of the compare @param aName the product name to be compared @param aPrice the product price to be compared */ public boolean equals(String aName, double aPrice) { boolean match = false; if(name.equalsIgnoreCase(aName) && price == aPrice) { match = true; } else { match = false; } return match; } ----------------- 4. /** This declares and instantiates an array of products with names and prices */ public void productArray() { final int NUM_PRODUCTS = 100; final int NUM_COLUMNS = 2; String[][] productListing = new String[NUM_PRODUCTS][NUM_COLUMNS]; } ----------------- 5. productListing[0][0] = "widget"; productListing[0][1] = "5429.99"; ----------------- 6. /** This determines the size of an array of products and prices called catalog as well as computing the total of all of the prices of the items in the catalog @return totalPrice the sum of all of the prices in the catalog */ public void totalCatalog() { int numItems = catalog.length; double sum = 0; for (int i = 0; i < numItems; i++) { sum = sum + Double.parseDouble(catalog[i][1]); } System.out.println("The number of items in the catalog is " + numItems); System.out.println("The total of all of the prices in the catalog is " + sum); } ----------------- 7. boolean match = catalog.equals("clock207", 10.50); ----------------- 8. -9 is even ----------------- 9. String name = "Foothill"; System.out.println("This prints out hill. " + name.substring(4, 8)); System.out.println("The length of the string is " + name.length()); ----------------- 10. public static void square(int aNumber) { return aNumber * aNumber; } ----------- public static void square(double aNumber) { return aNumber * aNumber; } Yes, It can. Because you are allowed to overload – using the same name for different methods with different parameters. --------------- public class PowerTest { public static void main(String[] args) { System.out.println(Power.square(75)); } } -----------------
The correct answers:
1. ----------------- 2. ----------------- 3. ----------------- 4. ----------------- 5. ----------------- 6. ----------------- 7. ----------------- 8. ----------------- 9. ----------------- 10. -----------------
Comments on Bouyssounouse_Janine's test:
1.(This is a word problem and will not be evaluated immediately.)
2.(This is a word problem and will not be evaluated immediately.)
3.(This is a word problem and will not be evaluated immediately.)
4.(This is a word problem and will not be evaluated immediately.)
5.(This is a word problem and will not be evaluated immediately.)
6.(This is a word problem and will not be evaluated immediately.)
7.(This is a word problem and will not be evaluated immediately.)
8.(This is a word problem and will not be evaluated immediately.)
9.(This is a word problem and will not be evaluated immediately.)
10.(This is a word problem and will not be evaluated immediately.)
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Total non-essay possible: 0
Your score: 0
There are still essay problems worth a total of 200
additional points that will be evaluated by your instructor.
Your submission has been received.
*****************************************
website created by Janine Bouyssounouse.
Last updated 02/05/07