CS2350/01 Programming Languages

Write a set of * characters based on the user input so that they form a square (the user specifies the side length), a rectangle (the user specifies the width and height), and a triangle (the user specifies the side length of the bottom line, and the height).

Preparation:

1. How to read an integer from the user input? (check out class Convert and class Int32)

2. How to do a for loop in C#?

3. How to do if-else in C#?

Sample 1

Sample 2

Sample 3

Lab 2

Follow the menu style in Sample2 of lab1

Write a program that converts a temperature given in Celsius to Fahrenheit, and converts a temperature given in Fahrenheit to Celsius. (P133 2 and 3)
Write a program that reads two double numbers from the user input. Display their sum, difference, product, quotient, and remainder of the values.
Write a program that draws a set of * characters based on the user input so that they form a filled/hollow hexagon (the user specifies the side length).
(Optional) Write a program that draws a set of * characters based on the user input so that they form a filled/hollow pentagon (the user specifies the side length).

Sample 1

The user should be able to try each one as many times as they want

Due: 11:59 09/04/2009

Lab 3

Write a program to read a series of numbers, and output the sum in currency format
Write a program that computes the average of five exam scores (double), read from the user. Print all the scores and the average value formatted with no digits to the right of the decimal.
Write a program to generate the product of all the numbers in the range [1, 10].
Output Sunday to Saturday based on the input 0 to 6

For example, when user inputs 4, your program should output Thursday

Due: 11:59 09/11/2009

Sample 1

Lab 4

Follow the menu style in Sample2 of lab1

The user should be able to try each one as many times as they want

1. Write a program to output max and min of the input (a group of data, either integers or doubles)

2. Write a program to calculate the circumference of a circle. Declare a named constant for pi with a value of 3.14159. Display the result with 3 digits on the right side of the decimal point.

3. Write a program to print the maximum numbers of quarters, dimes, nickels, and pennies that a customer should get back as change. This program will first read the amount of cents for the value to be converted.

For example, if the user inputs 34 as the amount of cents, your programs should output 1 quarter, 1 nickel, and 4 pennies.

4. Write a program to determine which way is most economic to purchase the carpets. Suppose the customer wants to purchase carpets for 3 bed rooms, 1 living room, and 1 sun room. The sizes of the rooms are provided by the customer in feet and inches (For example: length: 12 feet 3 inches, width: 14 feet 4 inches).

There are two carpet options:

Berber (best) @ $27.95 per square yard

Pile (economy) @ 15.95 per square yard

And customer wants to use Berber for 2 of the 5 rooms, and Pile for 3 of the 5 rooms.

Due: 11:59 09/18/2009

Sample 1

Sample 2

Sample 3

Lab 5

Follow the menu style in Sample2 of lab1

Preparation:

1. check out the ArrayList class in C# (google c# arraylist class)

http://msdn.microsoft.com/en-us/library/system.collections.arraylist.aspx

2. how to convert from Object to Double? Or from Object to Integer?

3. how to measure how many digits an integer has?

Write a program to:

1. output the ordered list of the input (with duplicate values, either integers, or doubles)

2. output the median of the input (a group of integers)

Definition: a) Median: the number(s) in the middle of the ordered list.

b) If there are odd number of input numbers, the median is the middle number

(For example, if the input is: 3 4 5 1 2, the median is 3)

c) If there are even number of input numbers, the median is the average of the middle two numbers

(For example, if the input is: 3 4 5 1 2 6, the median is (3+4)/2 which is 3.5)

3. calculate the cubes of int values up to 100. The output should be in two columns: the first lists the value; the second contains the cube of that value. Manage the output so that the values line up in columns. (check out int_variable.ToString().Length if int_variable is an integer variable)

Due: 11:59 09/25/2009

Sample 1

Sample 2

Lab 6

Follow the menu style in Sample2 of lab1

Preparation:

1. check out struct in C# (google c# struct)

(http://msdn.microsoft.com/en-us/library/ah19swz4(VS.71).aspx)

What are the differences between structs and classes?

Why do we need to use structs sometimes?

2. check out the List class in C# (google c# list class)

(http://msdn.microsoft.com/en-us/library/6sh2ey19.aspx)

Pay close attention to:

a) How a List object is defined and instantiated

b) How the elements are inserted into a List

c) How the elements are sorted in a List (Different sort methods of List)

3. how to compare two strings?

Write a program to:

1. Given a number n, try to calculate the sum from 0 to n in both recursive and non-recursive way

2. Define a struct for each student which records his/her first name, last name, and ksu id.

Read from the user student information, and add them into a List

Output the student information sorted by their ksu ids

Output the student information sorted by their last names

Output the student information sorted by their first names.

Due: 11:59 10/2/2009

Sample 1

Sample 2

Sample 3

Lab 7

Follow the menu style in Sample2 of lab1

Imagine a course in which the final exam counts for 40% of the final grade, the midterm exam counts for 40%, and the median homework grade makes up the remaining 20%. The student will get

A (90 to 100)

B (80 to 89)

C (70 to 79)

D (60 to 69)

F (59 or below)

Write a program to:

1. Define a class for each student which records his/her ksu id, first name, last name, midterm grade, final grade, and (multiple) homework grades. Try different modifiers (static, public, private, etc) to see how they work. Write methods such as:

CalculateGrade()

GetKsuId()

GetFirstName()

GetLastName()

2. Read from the user student information, and add them into a List.

3. Make sure that no two students have the same ksu id

4. Output the student ksu id, firstname, last name, and the course grade (A, B, C, D, or F) sorted by

a) their ksu ids

b) their first names

c) their last names

Due: 11:59 10/9/2009

Sample 1

Sample 2

An example of output:

Please input your student information:

KSU Id: 1234

First Name: Mary

Last Name: Jane

Midterm: 90

Final: 80

homework: 100

homework: 80

homework: 70

homework: 80

homework:

More students? (y/n)

KSU Id: 2345

First Name: Peter

Last Name: Pan

Midterm: 90

Final: 80

homework: 70

homework: 80

homework: 90

homework:

More students? (y/n)

KSU Id: 3456

First Name: John

Last Name: Smith

Midterm: 100

Final: 100

homework: 90

homework: 80

homework: 70

homework: 90

homework: 60

homework: 70

homework:

More students? (y/n)

KSU Id: 3456

KSU Id already exists in the system, please input a new one: 1234

KSU Id already exists in the system, please input a new one: 2345

KSU Id already exists in the system, please input a new one: 4567

First Name: James

Last Name: Brown

Midterm: 80

Final: 80

homework: 70

homework: 50

homework: 60

homework:

More students? (y/n)

Sorted by KsuId:

KSU id: 1234 Name: Mary Jane Grade: B

KSU id: 2345 Name: Peter Pan Grade: B

KSU id: 3456 Name: John Smith Grade: A

KSU id: 4567 Name: James Brown Grade: C

Sorted by First Name:

KSU id: 4567 Name: James Brown Grade: C

KSU id: 3456 Name: John Smith Grade: A

KSU id: 1234 Name: Mary Jane Grade: B

KSU id: 2345 Name: Peter Pan Grade: B

Sorted by Last Name;

KSU id: 4567 Name: James Brown Grade: C

KSU id: 1234 Name: Mary Jane Grade: B

KSU id: 2345 Name: Peter Pan Grade: B

KSU id: 3456 Name: John Smith Grade: A

Press any key to continue . . .

Lab 8

Follow the menu style in Sample2 of lab1

Due: 11:59 10/16/2009

Imagine for each course, the final exam counts for 40% of the final grade, the midterm exam counts for 40%, and the median homework grade makes up the remaining 20%. The student will get grade points for each course:

4 (90 to 100)

3 (80 to 89)

2 (70 to 79)

1 (60 to 69)

0 (59 or below)

Write a program to:

1. Define a struct CourseInfo to record the name and credit hours for each course

2. Ask the user to input all the course information (course name and credit hours)

3. Ask the user to input information for each student including KSU id, first name, last name, and for each course, its midterm, final, and homework grades. For each student, for each course, the grade points are calculated as mentioned above. For each student, calculate the grade point average (GPA) by dividing the total amount of grade points earned by the total amount of credit hours attempted.

4. Make sure that no two students have the same ksu id

5. Output the student ksu id, firstname, last name, and GPA sorted by

a) their ksu ids

b) their first names

c) their last names

Sample 1

Sample 2

An example of output:

Please input course information, ending with enter key

Course name: Biology

Course credit:3

Course name: Biology Lab

Course credit:1

Course name: English 101

Course credit:3

Course name: Mathematics

Course credit:3

Course name:

Please input your student information:

KSU Id: 1234

First Name: Mary

Last Name: Joe

Please input the grades for course Biology:

Midterm: 60

Final: 60

homework: 60

homework:

Please input the grades for course Biology Lab:

Midterm: 70

Final: 70

homework: 70

homework:

Please input the grades for course English 101:

Midterm: 80

Final: 80

homework: 80

homework:

Please input the grades for course Mathematics:

Midterm: 90

Final: 90

homework: 90

homework:

More students? (y/n)

KSU Id: 2345

First Name: Peter

Last Name: Pan

Please input the grades for course Biology:

Midterm: 60

Final: 60

homework: 60

homework:

Please input the grades for course Biology Lab:

Midterm: 70

Final: 70

homework: 70

homework:

Please input the grades for course English 101:

Midterm: 60

Final: 60

homework: 60

homework:

Please input the grades for course Mathematics:

Midterm: 70

Final: 70

homework: 70

homework:

More students? (y/n)

KSU Id: 2345

KSU Id already exists in the system, please input a new one: 3456

First Name: John

Last Name: Smith

Please input the grades for course Biology:

Midterm: 90

Final: 90

homework: 90

homework:

Please input the grades for course Biology Lab:

Midterm: 100

Final: 100

homework: 90

homework:

Please input the grades for course English 101:

Midterm: 90

Final: 90

homework: 90

homework: 100

homework: 90

homework:

Please input the grades for course Mathematics:

Midterm: 90

Final: 90

homework: 90

homework:

More students? (y/n)

Sorted by KsuId:

KSU id: 1234 Name: Mary Joe GPA: 2.6

KSU id: 2345 Name: Peter Pan GPA: 1.4

KSU id: 3456 Name: John Smith GPA: 4.0

Sorted First Name:

KSU id: 3456 Name: John Smith GPA: 4.0

KSU id: 1234 Name: Mary Joe GPA: 2.6

KSU id: 2345 Name: Peter Pan GPA: 1.4

Sorted by Last Name;

KSU id: 1234 Name: Mary Joe GPA: 2.6

KSU id: 2345 Name: Peter Pan GPA: 1.4

KSU id: 3456 Name: John Smith GPA: 4.0

Press any key to continue . . .

Lab 9

Due: 11:59 10/23/2009

Purpose of the lab: get familiar with working with files using classes such as StreamReader and StreamWriter

4 (90 to 100)

3 (80 to 89)

2 (70 to 79)

1 (60 to 69)

0 (59 or below)

Write a program to:

1. Define a struct CourseInfo to record the name and credit hours for each course

2. Ask the user to input all the course information (course name and credit hours)

4. Make sure that no two students have the same ksu id

5. Output the student ksu id, firstname, last name, and GPA sorted by

a) their ksu ids

b) their first names

c) their last names

6. Write the course information (the name and credit hours for each course) to a file

7. Write the student information (ksuID, first name, last name, and midterm, final and homework grades

for each course) to another file

(files for 6 and 7 are different)

clear up all your lists (including student list, course list, homework list etc)

8. Read the course information from a file

9. Read the student information from another file

(files for 8 and 9 are different)

10. Output the student ksu id, firstname, last name, and GPA sorted by

d) their ksu ids

e) their first names

f) their last names

Sample 1

An example of output:

Please input course information, end with enter key

Course name:English

Course credit:3

Course name:Math

Course credit:3

Course name:Programming

Course credit:4

Course name:

Please input your student information:

KSU Id: 0003234235

First Name: John

Last Name: Smith

Please input the grades for course English:

Midterm: 90

Final: 90

homework: 90

homework:

Please input the grades for course Math:

Midterm: 89

Final: 89

homework: 89

homework:

Please input the grades for course Programming:

Midterm: 80

Final: 80

homework: 80

homework: 60

homework:

More students? (y/n)

KSU Id: 000343241

First Name: Mary

Last Name: Jones

Please input the grades for course English:

Midterm: 80

Final: 80

homework: 80

homework:

Please input the grades for course Math:

Midterm: 60

Final: 60

homework: 60

homework: 90

homework:

Please input the grades for course Programming:

Midterm: 80

Final: 80

homework: 90

homework:

More students? (y/n)

Sorted by KsuId:

KSU id: 343241 Name: Mary Jones Grade: 2.4

KSU id: 3234235 Name: John Smith Grade: 3.3

Sorted First Name:

KSU id: 3234235 Name: John Smith Grade: 3.3

KSU id: 343241 Name: Mary Jones Grade: 2.4

Sorted by Last Name;

KSU id: 343241 Name: Mary Jones Grade: 2.4

KSU id: 3234235 Name: John Smith Grade: 3.3

**************************************************************************

Write Course Information and Student Information to files

What would be the course information file name: courseInfo.txt

What would be the student information file name: studentInfo.txt

Writing process is successful…

**************************************************************************

Read Course Information and Student Information from files

What would be the course information file name: courseInfo.txt

What would be the student information file name: studentInfo.txt

Reading process is successful…

**************************************************************************

Sorted by KsuId:

KSU id: 343241 Name: Mary Jones Grade: 2.4

KSU id: 3234235 Name: John Smith Grade: 3.3

Sorted First Name:

KSU id: 3234235 Name: John Smith Grade: 3.3

KSU id: 343241 Name: Mary Jones Grade: 2.4

Sorted by Last Name;

KSU id: 343241 Name: Mary Jones Grade: 2.4

KSU id: 3234235 Name: John Smith Grade: 3.3

Press any key to continue . . .

Lab 10

Follow the menu style in Sample2 of lab1

Due: 11:59 10/30/2009

1. Write a program that generates 100 random numbers between 0 and 1000. Display the number of even

values generated as well as the smallest, the largest, and the range of values. Output should be

displayed in a Windows messagebox.

You can look at the Random class in C#.

For example, in your messagebox, there will be:

Even numbers: 54

Smallest number: 0

Largest number: 993

Range of numbers: 0 - 993

2. Prompt the user for the length of three line segments as integers. If the three lines could form a

triangle, print the integers and a message indicating they form a triangle. Recall that the sum of

the lengths of any two sides must be greater than the length of the third side to form a triangle.

For example, 20, 5, and 10 cannot be the lengths of the sides of a triangle because 5 + 10 is not

greater than 20. For line segments that do not form a triangle, print the integers and an

appropriate message indicating no triangle can be created. Use a state-controlled loop to allow

users to enter as many different combinations as they want.

For example:

*** You can be prompted to enter 3 integers which could possibly

*** be the respective lengths of the three sides of a triangle.

Please enter the first integer: 20

Please enter the second integer: 1

Please enter the third integer: 3

* The numbers 20 , 1, and 3 CANNOT represent sides of the same triangle. *

Would you like to try 3 numbers?

Please enter 'y' for yes or another letter for no: y

Please enter the first integer: 10

Please enter the second integer: 6

Please enter the third integer: 8

* The numbers 10 , 6, and 8 CAN represent sides of the same triangle. *

Would you like to try 3 numbers?

Please enter 'y' for yes or another letter for no: n

3. Write a program that produces a multiplication table. Allow the user to input the first and last

base values for the multiplication table. Display a column in the table beginning with the first

base inputted value. The last column should be the ending base value entered. Produce 15 rows of

computations. The first row should be for 1 times the beginning base, 1 times the (beginning base

value + 1), through 1 times the ending base value. The last row should be for 15 times the

beginning base, 15 times the (beginning base value + 1), through 15 times the ending base value.

Base values can range from 2 through 8. Display a formatted multiplication table.

For example:

*** You will be prompted to enter two integers. ***

*** A multiplication table will be displayed ***

*** based on these two base values entered. ***

*** Base values multiplied from 1 through 15. ***

*** Enter as many sets of 2 bases as you like. ***

Please enter the first base value, 2 - 8 : 2

Please enter the last base value <= 8 : 5

X 2 3 4 5

1 2 3 4 5

2 4 6 8 10

3 6 9 12 15

4 8 12 16 20

5 10 15 20 25

6 12 18 24 30

7 14 21 28 35

8 16 24 32 40

9 18 27 36 45

10 20 30 40 50

11 22 33 44 55

12 24 36 48 60

13 26 39 52 65

14 28 42 56 70

15 30 45 60 75

*** Would you like to enter two base values?

*** Please enter 'y' for yes or any other letter for no: n

Lab 11

Follow the menu style in Sample2 of lab1

Due: 11:59 11/13/2009

Write a program to

1. read the information of multiple groups of students. Each group may contain different number of students. For each group, output the median GPA and average GPA. Define a class of Student which contains information such as first name, last name, GPA, etc. Define a jagged array of Student class objects.

An example to create a jagged array:

int[ ] [ ] anArray = new int[4] [ ];

anArray [0] = new int[2]; anArray[0][0] = 100; anArray[0][1] = 200;

anArray [1] = new int[ ] {11, 22, 37};

anArray [2] = new int[ ] {16, 72, 83, 99, 106};

anArray [3] = new int[ ] {1, 2, 3, 4};

An example of output:

How many groups of students would you like to input: 3

How many students would you like to input for group 1: 3

Group 1 student 1 first name: Mary

Group 1 student 1 last name: Joe

Group 1 student 1 GPA: 3.4

Group 1 student 2 first name: Peter

Group 1 student 2 last name: Pan

Group 1 student 2 GPA: 2.3

Group 1 student 3 first name: John

Group 1 student 3 last name: Smith

Group 1 student 3 GPA: 4.0

How many students would you like to input for group 2: 2

Group 2 student 1 first name: Tom

Group 2 student 1 last name: Hanks

Group 2 student 1 GPA: 3.3

Group 2 student 2 first name: Tom

Group 2 student 2 last name: Cruise

Group 2 student 2 GPA: 3.2

How many students would you like to input for group 3: 4

Group 3 student 1 first name: Lucy

Group 3 student 1 last name: Liu

Group 3 student 1 GPA: 4.0

Group 3 student 2 first name: Pete

Group 3 student 2 last name: Samprass

Group 3 student 2 GPA: 4.0

Group 3 student 3 first name: Roger

Group 3 student 3 last name: Federer

Group 3 student 3 GPA: 3.9

Group 3 student 4 first name: Rafa

Group 3 student 4 last name: Nadal

Group 3 student 4 GPA: 3.8

Median GPA for group 1 is 3.4, and average GPA for group 1 is 3.23

Median GPA for group 2 is 3.25, and average GPA for group 2 is 3.25

Median GPA for group 3 is 3.95, and average GPA for group 3 is 3.93

Press any key to continue . . .

2. create a two-dimensional array with 10 rows and 2 columns. The first column should be filled with 10 random numbers between 0 and 100. The second column should contain the squared value of the element found in column 1. Using the Show() method of the MessageBox class, display a table.

Sample for part 1

Sample for part 2

Lab 12

Due: 11:59 11/20/2009

Write a window based student information inputting system. The user can input KSU id, first name, last name and GPA for each student.

Each time the user clicks the Save button, the information of the current student will be saved into system, and all the textboxes will be cleared to get ready for the information of the next student. When the user are done with inputting, the user can click the Recording finished button. Then more buttons will show up:

The user can then view the student information ordered by different features by clicking on different buttons. Each time the user clicks a button, a messagebox will pop up to show the student information. For example, if the user clicks Students ordered by ksu id button, the following messagebox will pop up:

The system also need to check if the new coming ksu id is already in the system, if so, a messagebox will pop up to notify the user, and the textbox for ksuid will be cleared for the user to re-input ksuid (other textboxes should not be cleared).

Sample for lab12

NOTICE: the submission email is yshi04@gmail.com