SE1011
Class Exercises
## Exercise 1: Packages 1. Individually write an explanation for the purpose of a Java package. 2. When you and your partner have both completed your answers, compare them and determine which answer you like better (and why). 3. Write a new an improved answer together. ## Exercise 2: Coding Conventions 1. Individually write an explanation for the purpose of a coding convention. 2. When you and your partner have both completed your answers, compare them and determine which answer you like better (and why). 3. Write a new an improved answer together. 4. List the main areas that the [coding standards](CodingStandard) document addresses. 5. List important coding conventions that you need to be aware of as you continue writing code this year. ## Exercise 3: Random Numbers Using documentation for the [java.util.Random](http://docs.oracle.com/javase/8/docs/api/java/util/Random.html) class write code to generate random numbers with the following characteristics: * An integer value between 0 and 15 (including 0, but no including 15) * An integer value between 5 and 10 * A double value between 0.0 and 1.0 * A double value between 0.0 and 100.0 * A double value between -100.0 and 100.0 ## Exercise 4 (optional): System.out.format Using documentation for the [java.io.PrintStream.format](http://docs.oracle.com/javase/8/docs/api/java/io/PrintStream.html#format(java.lang.String, java.lang.Object...)) method and the [format string syntax](http://docs.oracle.com/javase/8/docs/api/java/util/Formatter.html#syntax) make use of `System.out.format` to: 1. Display "**There are 8 chocolate bars each of the 5 bags**" where the numbers are stored in integers, `numBars` and `numBags`. 2. Display "**The COW JUMPED over the MOON**" where the all caps words are stored in strings: `noun1`, `verb`, and `noun2`. 3. Display "**The 8 COWs JUMPED over the MOON**" where the **8** is stored in an integer, `number`, and the all caps words are stored in strings: `noun1`, `verb`, and `noun2`. 4. Display PI with 5 significant digits. 5. Display five integers (each on a separate line) so that they are right justified, e.g., ``` 13 1872 8238820 3 -73 ``` 6. Display a table with a heading and three additional rows with the following format (assume all values come from variables): ``` Name Address ==== ======= John 123 8th St. Wendy 231 3rd Ave. Edwardo 321 Lethanderson Way ``` 7. Display five doubles (each on a separate line) so that they are right justified and have 3 places to the right of the decimal, e.g., ``` 100.135 -3.700 70003.888 23.456 3.142 ```

Tuesday, 03-Oct-2017 14:40:24 EDT