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#1
November 13th, 2012, 03:43 PM
 RomStock
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Join Date: Nov 2012
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Homework - Mutli-Dimensional Arrays

Hey everyone, I could use some help with a homework problem that i am not understanding. Here is the problem:

Write a class (and a client class to test it) that encapsulates the evolution of the sales tax rates in the 50 U.S states over the last 10 years. Your only instance variable should be a two-dimensional array of values representing the sales tax rates. Dimension 1 represents the state and dimension2 represents the year. Your constructor can simply be a default constructor, randomly generating the sales tax rates, which should be between 0 and 0.06. You should include the following methods:

a. A method returning the index of the state that has the biggest average tax rate over the years.

b. A method returning an array of indexes of the states that have had at least one year with a tax rate less than 0.001

c. A method returning the highest sales tax rate over the years for a given state (which will be a parameter)

so far i have:

public Taxes()
{
Random random = new Random();
for (double i = 0; i < 50; i++)
{
for (double j = 0; j < 10; j++)
{
taxRate[i][j] = random.nextDouble( 0.06);
}
}
}

which doesn't even work. If i could get help with what I have and an idea for the three methods that would be awesome. Thanks guys!!

#2
November 14th, 2012, 09:35 AM
 bullet
Java Junkie

Join Date: Feb 2004
Location: Mobile, Alabama
Posts: 3,960
Time spent in forums: 1 Month 2 Weeks 1 Day 7 h 7 m 14 sec
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Code:
```public Taxes()
{
Random random = new Random();
for (double i = 0; i < 50; i++)
{
for (double j = 0; j < 10; j++)
{
taxRate[i][j] = random.nextDouble( 0.06);
}
}
}```

This will work if you define taxRate.

The statement of the problem seems pretty straightforward.

Where are you having a problem with it?

Is it in what is being asked or the code?

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