<![CDATA[
# Lab 4 -- Loops
* Date: 10-2-2017
* Course: SE1011-051
* Submitted to: Dr. Chris Taylor
>> | Earned | Possible | Criteria |
>> | ------ | -------- | ------------------------------------------------ |
>> | 5 | 5 | Demo by end of lab |
>> | 85 | 85 | Met requirements / Technical quality |
>> | 5 | 5 | Coding standard compliance and program clarity |
>> | 5 | 5 | Following submission instructions |
>
> # Feedback
> * Nice work
# Lab4.java
```
/*
* Course: SE1011-051
* Term: Fall 2017-2018
* Assignment Lab 3 Console
```
> #### This is lab 4
```
* Author: Trevor Barnes
* Date: 9/26/17
*/
/*
This program is a game where a user chooses between two scenarios where their uncle offers them money.
Until he dies (0-40 weeks) he will either add an original value of money between $0-5000 per week or
double money every week starting at $0.01.
If the option chosen is greater than the opposite option, the user wins and the user is shown how much extra money they made.
If the option chosen is less than the opposite option, the user loses and the user is shown how much money they missed out on.
Finally, the user is given the option to play again or end the program.
*/
package barnestr;
import java.util.Scanner;
public class Lab4 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int again = 1;
while(again == 1) {
```
> #### Prefer to use a `boolean` here
> Since this is supposed to keep track of one of two things (whether to
> repeat or not), you should use a `boolean` variable to store the value.
```
System.out.println("Suppose you have a wealthy uncle who gives you two options for your inheritance. He will add to your inheritance every week until he dies according to one of two schemes:\n" +
"\n" +
"1. Starting with a given amount (such as $5000), he will add that amount to your total inheritance every week, or\n" +
"2. Starting with one penny, he will double your inheritance every week.\n" +
"Option 2 will always outpace option 1 at some point in the future, but the question is when will option 2 be a better financial decision for you than option 1 and will it happen before your uncle dies?\n" +
"\n" +
"Enter which option you would prefer ('1' or '2'):");
int option=sc.nextInt();
double number1 = Math.random();
double startAmount = 5000*number1;
double startAmountA = 5000*number1;
```
> #### Pick meaningful identifier names
> You should pick meaningful identifier names. This makes it easier
> to understand your code. It can also reduce the amount of comments you
> need to include because your code will be more self-explanatory.
>
> `startAmount` does not contain the starting amount when looping.
```
double exp = .01;
double number2 = Math.random();
int randWeeks = (int) (40*number2);
int week = 1;
while (week < randWeeks) {
System.out.format("Week %2d Linear: $%.2f, Exponential: $%.2f\n", week, startAmount, exp);
```
> #### -5 Stop weekly display after exponential exceeds linear
> You should not display the weekly totals once the exponential total
> exceeds the linear total.
```
week = week + 1;
startAmount = (startAmount + startAmountA);
exp = exp*2;
}
System.out.println("\n" + "Your uncle dies after " + week + " weeks so you");
if(option == 1 && startAmount > exp) {
double finalAmount = startAmount - exp;
System.out.format("got lucky and ended up with an extra $%.2f\n", finalAmount);
} else if(option == 1 && startAmount < exp) {
double finalAmount = exp - startAmount;
System.out.format("got unlucky and missed out on $%.2f\n", finalAmount);
} else if(option == 2 && exp > startAmount) {
double finalAmount = exp - startAmount;
System.out.format("got lucky and ended up with $%.2f\n", finalAmount);
} else if(option == 2 && exp < startAmount) {
double finalAmount = startAmount - exp;
System.out.format("got unlucky and missed out on $%.2f\n", finalAmount);
}
System.out.println("Do you want to play again? (1 for yes) or (0 for no)");
again = sc.nextInt();
}
}
}
```
]]>