PRG420 Java Programming I

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  1. PRG420 Input and formatted output Right-facing arrow

    PRG/420 Week 1 Java 1.13 LAB: Input and formatted output: Right-facing arrow

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    PRG/420 Week 1 Java 1.13 LAB: Input and formatted output: Right-facing arrow


    Given two input integers for an arrowhead and arrow body, print a right-facing arrow.
    Ex: If the input is:
    0 1


    the output is:
    1
    11
    00000111
    000001111
    00000111
    11
    1

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  2. PRG420 Expression for calories burned during workout

    PRG/420 Week 1 Java 1.29 LAB: Expression for calories burned during workout

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    PRG/420 Week 1 Java 1.29 LAB: Expression for calories burned during workout
     
    The following equations estimate the calories burned when exercising (source):
    Women: Calories = ( (Age * 0.074) - (Weight * 0.05741) + (Heart Rate * 0.4472) - 20.4022 ) * Time / 4.184
    Men: Calories = ( (Ago * 0.2017) - (Weight * 0.09036) + (Heart Rate * 0.6309) - 55.0969 ) * Time / 4.184


    Write a program using inputs age (years), weight (pounds), heart rate (beats per minute), and time (minutes), respectively.
    Output calories burned for women and men.
    Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
    System.out.printf("%.2f", yourValue))


    Ex: If the input is:
    49 155 148 60
    the output is:
    Women: 580.94 calories
    Men: 891.47 calories

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  3. PRG420 Mad Lib

    PRG/420 Week 1 Java 1.30 LAB: Mad Lib

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    PRG/420 Week 1 Java 1.30 LAB: Mad Lib


    Mad Libs are activities that have a person provide various words, which are then used to complete a short story in unexpected (and hopefully funny) ways.
    Complete the program to read the needed values from input, that the existing output statement(s) can use to output a short story.


    Ex: If the input is:
    Eric Chipotle 12 cars


    the output is:
    Eric went to Chipotle to buy 12 different types of cars.

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  4. PRG420 Phone number breakdown

    PRG/420 Week 1 Java 1.31 LAB: Phone number breakdown

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    PRG/420 Week 1 Java 1.31 LAB: Phone number breakdown


    Given a long integer representing a 10-digit phone number, output the area code, prefix, and line number using the format (800) 555-1212.


    Ex: If the input is:
    8005551212
    the output is:
    (800) 555-1212


    Hint: Use % to get the desired rightmost digits. Ex: The rightmost 2 digits of 572 is gotten by 572 % 100, which is 72.
    Hint: Use / to shift right by the desired amount. Ex: Shifting 572 right by 2 digits is done by 572 / 100, which yields 5. (Recall integer division discards the fraction).
    For simplicity, assume any part starts with a non-zero digit. So 0119998888 is not allowed.

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  5. PRG/420 Week 2 Java 2.18 LAB: Warm up: Text message abbreviation decoder

    PRG/420 Week 2 Java 2.18 LAB: Warm up: Text message abbreviation decoder

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    PRG/420 Week 2 Java 2.18 LAB: Warm up: Text message abbreviation decoder


    (1) If a user's input string matches a known text message abbreviation, output the unabbreviated form, else output: Unknown. Support two abbreviations: LOL -- laughing out loud, and IDK -- I don't know. (4 pts)


    Sample input/output:
    Input an abbreviation:
    LOL
    laughing out loud


    (2) Expand to also decode these abbreviations. (3 pts)
    BFF -- best friends forever
    IMHO -- in my humble opinion
    TMI -- too much information

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  6. PRG420 Week 2 Java 2.19 LAB Smallest number

    PRG/420 Week 2 Java 2.19 LAB: Smallest number

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    PRG/420 Week 2 Java 2.19 LAB: Smallest number


    Write a program whose inputs are three integers, and whose output is the smallest of the three values.


    Ex: If the input is:
    7 15 3
    the output is:
    3

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  7. PRG420 Week 2 Java 2.20 LAB Interstate highway numbers

    PRG/420 Week 2 Java 2.20 LAB: Interstate highway numbers

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    PRG/420 Week 2 Java 2.20 LAB: Interstate highway numbers


    Primary U.S. interstate highways are numbered 1-99. Odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west Auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. Thus, I-405 services I-5, and I-290 services I-90.
    Given a highway number, indicate whether it is a primary or auxiliary highway. If auxiliary, indicate what primary highway it serves. Also indicate if the (primary) highway runs north/south or east/west.


    Ex: If the input is:
    90
    the output is:
    I-90 is primary, going east/west.
    Ex: If the input is:
    290
    the output is:
    I-290 is auxiliary, serving I-90, going east/west.
    Ex: If the input is:
    0
    or any number not between 1 and 999, the output is:
    0 is not a valid interstate highway number.


    See Wikipedia for more info on highway numbering.

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  8. PRG420 Week 2 Java 2.21 LAB Seasons

    PRG/420 Week 2 Java 2.21 LAB: Seasons

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    PRG/420 Week 2 Java 2.21 LAB: Seasons


    Write a program that takes a date as input and outputs the date's season. The input is a string to represent the month and an int to represent the day.


    Ex: If the input is:
    April 11
    the output is:
    Spring
    In addition, check if the string and int are valid (an actual month and day).


    Ex: If the input is:
    Blue 65
    the output is:
    Invalid


    The dates for each season are:
    Spring: March 20 - June 20
    Summer: June 21- September 21
    Autumn: September 22 - December 20
    Winter: December 21 - March 19

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  9. PRG420 Week 2 Java 2.22 LAB Exact change

    PRG/420 Week 2 Java 2.22 LAB: Exact change

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    PRG/420 Week 2 Java 2.22 LAB: Exact change


    Write a program with total change amount in pennies as an integer input, and output the change using the fewest coins, one coin type per line. The coin types are Dollars, Quarters, Dimes, Nickels, and Pennies. Use singular and plural coin names as appropriate, like 1 Penny vs. 2 Pennies.


    Ex: If the input is:
    0
    the output is:
    No change


    Ex: If the input is:
    45
    the output is:
    1 Quarter
    2 Dimes

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  10. PRG420 Week 2 Java 2.23 LAB Leap Year

    PRG/420 Week 2 Java 2.23 LAB: Leap Year

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    PRG/420 Week 2 Java 2.23 LAB: Leap Year


    A year in the modern Gregorian Calendar consists of 365 days. In reality, the earth takes longer to rotate around the sun. To account for the difference in time, every 4 years, a leap year takes place. A leap year is when a year has 366 days: An extra day, February 29th. The requirements for a given year to be a leap year are:
    1) The year must be divisible by 4
    2) If the year is a century year (1700, 1800, etc.), the year must be evenly divisible by 400
    Some example leap years are 1600, 1712, and 2016.


    Write a program that takes in a year and determines whether that year is a leap year.


    Ex: If the input is:
    1712
    the output is:
    1712 is a leap year.


    Ex: If the input is:
    1913
    the output is:
    1913 is not a leap year.

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