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SOLVED Computer Science 1081 Assignment 04

Program    #1    
Write    a    program    that    asks    the    user    to    enter    a    number    within    the    range    of    1    through    10.        Use    a    
switch    statement    to    display    the    Roman    numeral    version    of    that    number.        Do    not    accept    a    
number    less    than    1    or    greater    than    10.    
• Use    a    switch statement
• Make    sure    that    you    tell    the    user    if    their    input    is    not    accepted
Sample    Outputs:
Enter a number (1-10): 5
The Roman numeral version of 5 is V
Press any key to continue . . .
========================================
Enter a number (1-10): 15
Enter a number in the range 1 through 10
Press any key to continue . . .
Program    #2
A    software    company    sells    a    package    that    retails    for    $99.        Quantity    discounts    are    given    according    
to    the    following    table:
Quantity Discount
10-19 20%
20-49 30%
50-99 40%
100    or    more 50%
Write    a    program    that    asks    for    the    number    of    units    sold    and    computes    the    total    cost    of    the    
purchase.        Make    sure    the    number    of    units    is    greater    than    0.
• Use    only    the    if    statement,    don’t    use    a    switch or    else block
• Note: the    auto-checker    on    this    program    does    take    some    time    (a    few    seconds on    the    college’s    
computers)    to    process    the    code    checks
Sample    Outputs:
How many units were sold? 48
The total cost of the purchase is $3326.40
Press any key to continue . . .
========================================
How many units were sold? -1
Error: Units sold must be positive integer
Press any key to continue . . .
Test    the    boundaries:    does    the    result    match    expectations    when    you    are    1    unit    below, and    1    
unit above    the    threshold    (e.g.    Quantity    9    and    10,    getting    the    correct    discount    values)
Program    #3
A    bank    charges    $10    per    month    plus    the    following    check    fees    for    a    commercial    checking    account:
$0.10    each    for    fewer    than    20    checks
$0.08    each    for    20-39    checks
$0.06    each    for    40-59    checks
$0.04    each    for    60    or    more    checks
The    bank    also    charges    an    extra    $15    if    the    balance    of    the    account    falls    below    $400    (before    any    
check    fees    are    applied).        Write    a    program    that    asks    for    the    beginning    balance    and    the    number    
of    checks    written.        Compute    and    display    the    bank’s    service    fees    for    the    month.        Do    not    accept    a    
negative    value    for    the    number    of    checks written.        If a    negative    value    is    given    for    the    beginning    
balance,    display    and    urgent    message    indicating    the    account    is    overdrawn.
• Use    only    the    if    statement
• No    message    needs    to    be    displayed    if    the    account    balance    falls    below    the    $400    threshold,    
just    add    the    appropriate    fee    into    the    total.
• For    the    overdrawn    balance    portion    of    the    problem,    determine    if    the    fee    will    overdraw    
the    account.        However, display    the    message    about    overdrawing    the    account    before    
displaying    what    the    fees    are.        For    example,    if    the    account    has    $9.99    and    the    fees    will    
total    to    $10,    the    account    will    be    overdrawn.    
Sample    Outputs:
Enter the following information about your checking account
Beginning balance: $1562
Number of checks written: 20
The bank fee this month is $11.60
Press any key to continue . . .
========================================
Enter the following information about your checking account
Beginning balance: $10
Number of checks written: 2
Your account is overdrawn!
The bank fee this month is $25.20
Press any key to continue . . .
Program    #4
Write    a    program    that    displays    the    following    menu    (see    below).    
- If    the    user    enters    1,    the    program    should    ask    for    the    radius    of    the    circle    and    then    display    its    
area.        Use    the    formula    area    =    pi*r^2.        Use    3.14159    for    pi    and    the    radius    of    the    circle    for    r.    
- If    the    user    enters    2,    the    program    should    ask    for    the    length    and width    of    the    rectangle    and    then    
display    he    rectangle’s    area.        Use    the    formula    area    =    length    *    width.
- If    the    user    enters    3,    the    program    should    ask    for    the    length    of    the    triangle’s    base    and    its    
height,    and    then    display    is    area.        Use    the    formula    area    =    base    *    height    *    (1/2).
- If    the    user    enters    4,    the    program    should    end
- Display    an    error    message    if    the    user    enters    a    number    outside    the    range    of    1    through    4    when    
selecting    an    item    from    the    menu.        Do    not    accept    negative    values    for    the    circle’s    radius,    the    
rectangle’s    length    or    width,    or    the    triangle’s    base    or    height.
• Use    a    switch statement    to    evaluate    the    user    menu    choice
• Do    input    validation    for    the    correct    menu    choice
• Define    Pi    as    a    constant    to    5 decimal    places    (3.14159)
Sample    Outputs:
Geometry Calculator
1. Calculate the Area of a Circle
2. Calculate the Area of a Rectangle
3. Calculate the Area of a Triangle
4. Quit
Enter your choice (1-4): 1
Enter the Radius: 5
The area is: 78.5397
Press any key to continue . . .
Geometry Calculator
1. Calculate the Area of a Circle
2. Calculate the Area of a Rectangle
3. Calculate the Area of a Triangle
4. Quit
Enter your choice (1-4): 2
Enter the length: 5
Enter the width: 4
The area is: 20
Press any key to continue . . .
========================================
Geometry Calculator
1. Calculate the Area of a Circle
2. Calculate the Area of a Rectangle
3. Calculate the Area of a Triangle
4. Quit
Enter your choice (1-4): 3
Enter the base: 6
Enter the height: 4
The area is: 12
Press any key to continue . . .
========================================
Geometry Calculator
1. Calculate the Area of a Circle
2. Calculate the Area of a Rectangle
3. Calculate the Area of a Triangle
4. Quit
Enter your choice (1-4): 4
Exiting
Press any key to continue . . . 
========================================
Geometry Calculator
1. Calculate the Area of a Circle
2. Calculate the Area of a Rectangle
3. Calculate the Area of a Triangle
4. Quit
Enter your choice (1-4): 5
You must choose from the a listed
option
Press any key to continue . . .