CS46A Fall 18

Thanksgiving Day is November 22, 2018 this year.

Write a program DaysUntilPrinter which will calculate how many days from today (whatever day the program is run) until Thanksgiving Day.

Chapter 2 Worked Example 1 from your text gives you a Day class and discusses how to use it. A copy of the Day class itself is at the Codecheck URL below. You need to copy the class into a Bluej project along with the starter code.

Lesson 2 of the Horstmann videos also discusses the Day object. Section 19: How Many Days gives an example of working with the Day object in code.

Do the following:

Create a Day object representing the current day. Use the constructor that does not take any parameters, like this. new Day()
(Note: you will get the date on the server where Codecheck us running. That may be one day later than the date in San Jose)
Assign that Day object to a variable called today. There is already a statement in the starter file to print the variable today. Do not change it. Note that no matter when the application is run, the value in today should be the current date. That means do not put any parameters in the parentheses for the Day constructor.
Create a Day object representing Thanksgiving Day and assign it to a variable.
Calculate how many days Thanksgiving Day is from today (it will be a positive number). Print it.
Now calculate the date 30 days from today.
Print the year. (Use a method to get the year)
Print the month. (Use a method to get the month)
Print the day of the month. (Use a method to get the day)

For the draft, just add code to the starter to define the variable today and assign today's date to it. When you run the program, the date will be printed by the starter code.

2A draft:
2A final:

Complete the class WorkingWithStrings class using String methods. Remember that all the String methods are accessors. They do not change the original String. If you want to apply multiple methods to a String, you will need to save the return value in a variable.

Complete the class by doing the following

print the word in lowercase
print the length of the word
in the original word, replace
"s" with "$" ( Use the unmodified variable word)
print the changed word
In the changed word, replace
"e" with "3"
print the this changed word
In this newest changed word, replace
"a" with "4"
print the final changed word (with all the replacements)
the code to print the original word is already included for you. Do not change that statement

You will need to use the replace() method multiple times. Then print the final string. Remember that replace is an accessor method. It returns the changed version of the string. If you want to do something with the returned string - like use replace on it again - you need to save the return value in a variable.

You are given a word in the starter file and Codecheck will test with that word and with a different word. You should not worry about the other word. Codecheck will take care of it.

For the draft, add code to do the first two steps: The original word will be printed for you.

2B draft:
2B final:

In this application you will finish the SnowmanViewer class. You will need the Horstmann graphics package. Download and unzip it if you have not done so. Put it in a convenient location. (You will need this again in future assignments and exams).The URL is https://s3.amazonaws.com/udacity-hosted-downloads/graphics.zip

Create a new Bluej project. Select Project->Import ... Navigate to the graphics folder, select it, and click Open to add it to your project. You may get a warning. Just click Continue. Be sure the folder you import contains the files directly and does not contain an extra folder. Your workbench should look similar to this.

workbench

Now create a new class, SnowmanViewer, and copy the starter code from Codecheck. Finish the application to draw a snowman consisting of 3 circles centered on top of one another with a hat on top. The centers of the circles fall on a vertical line. The drawing will looks like this:

screen shot of output

The dotted rectangle is the bounding rectangle of the middle circle. It is not part of your drawing.

Specifications:

The upper left hand corner of the hat is at 50, 10.
The hatbox is 20 x 20. Fill it with black. (Do not draw it)
The line for the hat brim at the bottom of the hat extends 10 pixels further than the hatbox on each side.
The diameter of the small circle is 20. The upper left hand corner of its bounding rectangle is at (50, 30)
The diameter of the middle circle is 40 The upper left hand corner of its bounding rectangle is a (40, 50)
The diameter of the bottom circle is 60. You figure out the coordinates for this one.

For the draft, fill the hatbox and draw the brim.

You may get a warning. Just click Continue

2C draft:
2C final: