How do I get the one part of the needed output for quarterly sales-statistics?

**SOG** · June 24th, 2012, 12:02 AM

The first part is the needed output with a missing part: the 3rd-quarter answer. The second part is the code itself, with only the indicated problem-area.

Highest sales-division for Quarter-1: D-5
Highest sales-division for Quarter-2: D-3
Highest sales-division for Quarter-4: D-3

Here is the problematic-code.

                // Use these nested-loops to display the highest sales-division for a quarter.
                for (int rows = 0; rows < QUARTERS; rows++)
                {
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] > highestQuart)
                          {
                               highestQuart = salesFigures[rows][cols];
                          }
                     }
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] == highestQuart)
                          {
                               System.out.println("Highest sales-division for Quarter-" + (rows + 1) + ":" + " D-" + (cols + 1));
                          }
                     }
                }

**Norm** · June 24th, 2012, 07:41 AM

Please Edit your post and wrap your code with
[code=java]
<YOUR CODE HERE>
[/code]
to get highlighting and preserve formatting.

**SOG** · June 25th, 2012, 11:57 AM

Originally Posted by Norm

Please Edit your post and wrap your code with
[code=java]
<YOUR CODE HERE>
[/code]
to get highlighting and preserve formatting.

I did what you told me to do and understood you - along with some editing on my part because of an article I read on this website. Now what?

**Norm** · June 25th, 2012, 12:00 PM

Can you explain what the problem is?
Show what the code does now, explain what is wrong with it and show what it should do.

**SOG** · June 25th, 2012, 12:12 PM

Right now, the code displays this...

Highest sales-division for Quarter-1: D-5
Highest sales-division for Quarter-2: D-3
Highest sales-division for Quarter-4: D-3

...instead of what it is supposed to display - something like the following-part with a number where the hashtag is:

Highest sales-division for Quarter-1: D-5
Highest sales-division for Quarter-2: D-3
Highest sales-division for Quarter-3: D-#
Highest sales-division for Quarter-4: D-3

Now, what I think is wrong with it is that either 1+ lines are missing or that there is a newline to consume.

**Norm** · June 25th, 2012, 12:41 PM

Is there an if statement that controls what is printed? Is it true when it is supposed to be true so the line is printed?

Try debugging the code by adding a println statement that prints out the values used in the if statement so you can see why the program does what it does. When you see the values printed out you may be able to understand what is happening.

**SOG** · June 25th, 2012, 09:04 PM

Originally Posted by Norm

Is there an if statement that controls what is printed? Is it true when it is supposed to be true so the line is printed?

Try debugging the code by adding a println statement that prints out the values used in the if statement so you can see why the program does what it does. When you see the values printed out you may be able to understand what is happening.

I notice what you told me and I did this somehow figuring out that I was using an accumulator as a highest-number variable in this case. I believe I confused the computer out of the confusion of knowing less about an algorithm than I think. The algorithm is supposed to find the highest-number in a set of numbers.

What info do you need to help me out with this problem?

I ask this because I'm trying to get the colz variable from the highest-number element in the array when it comes to my new code-setup below:

                // Use these nested-loops to display the highest sales-division for a quarter.
                for (int rows = 0; rows < QUARTERS; rows++)
                {
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] > highestQuart)
                          {
                               highestQuart = salesFigures[rows][cols];
                          }
                     }
 
                     for (int colz = 0; colz < DIVISIONS; colz++)
                     {
                          if (salesFigures[rows][colz] == highestQuart)
                          {
                               System.out.println("Highest sales-division for Quarter-" + (rows + 1) + "D-" + (colz + 1));
                          }
                     }
                }

**Norm** · June 25th, 2012, 09:22 PM

What variables did you print out in the code that controls what the program prints?
How did their values change as the program executed?

That's the problem, right, some value was not printed. Why wasn't it printed? Some problem in the code kept the program from executing the print statement.

**SOG** · June 25th, 2012, 09:30 PM

Just to be sure, what problem is that?

**Norm** · June 25th, 2012, 09:47 PM

what problem is that?

Strange you should ask me that.
Why did you post here? I thought you had a problem you were trying to solve.
I've suggested that you add some println statements to show you what the code is doing.

**SOG** · June 25th, 2012, 10:20 PM

I see your point. I tried to do what you said and set this code below up...

                // Use these nested-loops to display the highest sales-division for a quarter.
                for (int rows = 0; rows < QUARTERS; rows++)
                {
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] > highestQuart)
                          {
                               highestQuart = salesFigures[rows][cols];
                          }
                     }
 
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] == highestQuart)
                          {
                               System.out.println("Highest sales-division for Quarter-");
                          }
                     }
                }

...and came up with this output in bold.

Highest sales-division for Quarter-
Highest sales-division for Quarter-
Highest sales-division for Quarter-
Highest sales-division for Quarter-

It does happen to print something out for each quarter.

**Norm** · June 26th, 2012, 06:43 AM

Your print out does not show the values of any of the variables used in the code, like highestQuart, salesFigures[rows][cols], rows and cols.

Strange it printed 4 rows this time instead of 3 like the other times.

**SOG** · June 26th, 2012, 10:48 AM

Originally Posted by Norm

Your print out does not show the values of any of the variables used in the code, like highestQuart, salesFigures[rows][cols], rows and cols.

Strange it printed 4 rows this time instead of 3 like the other times.

I notice what you mean - it was because of a typo in my text editor. I used the last code-setup I gave you and this output came out...

Highest sales-division for Quarter-

**Norm** · June 26th, 2012, 10:52 AM

Have you solved your problem now? None of your posts have said anything about what you are doing to solve the problem and what the progress is or what the current situation is.

**SOG** · June 26th, 2012, 11:49 AM

I haven't solved the problem yet, but I have made some adjustments. Up in the higher-part of the program, I've tried to follow or copy (to an extent) what my textbook was saying about array-utilization by using this initialization below...

double highestQuart = salesFigures[0][0],

...instead of this one.

double highestQuart = 0,

I think the first piece of code here is supposed to either start an array fill-up, be a single accumulator, or become a replaceable-value variable, while the second one is just an accumulator. I can't seem to make a declaration-statement without initializing this variable.

I also tried to use the second nested-for-loop to display the rows and cols values, and came up with this...

Highest sales-division for Quarter-1: D-5
Highest sales-division for Quarter-2: D-3
Highest sales-division for Quarter-3: D-6
Highest sales-division for Quarter-4: D-4

...but came up with this the second time.

Highest sales-division for Quarter-1: D-6
Highest sales-division for Quarter-3: D-3

That is all I remember doing.

**Norm** · June 26th, 2012, 12:00 PM

How are you working at debugging the code? I suggested using println statements so you can see what he computer sees and what it does as the code executes.

**SOG** · June 26th, 2012, 12:12 PM

I typed in a println-statement that says "Statement printout here." and it appeared 3 times in a row.

**Norm** · June 26th, 2012, 12:42 PM

That print out does not show the values of any of the variables used in the code, like highestQuart, salesFigures[rows][cols], rows and cols.

What information about the execution of the program did your 3 print outs give you?

**SOG** · June 26th, 2012, 12:54 PM

Originally Posted by Norm

What information about the execution of the program did your 3 print outs give you?

The information given to me was that the if-statement worked 3 times, but that something I haven't identified in the if-statement stopped it from printing a 4th one. Maybe it was a newline-statement to consume.

**Norm** · June 26th, 2012, 01:01 PM

something I haven't identified in the if-statement

print out the values of all the variables used in the if statement BEFORE the if statement sees them.

**SOG** · June 26th, 2012, 01:14 PM

print out the values of all the variables used in the if statement BEFORE the if statement sees them.

I did what you told me to do...

                // Use these nested-loops to display the highest sales-division for a quarter.
                for (int rows = 0; rows < QUARTERS; rows++)
                {
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] > highestQuart)
                          {
                               highestQuart = salesFigures[rows][cols];
                          }
                     }
 
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          System.out.println(rows + " " + cols);
 
                          if (salesFigures[rows][cols] == highestQuart)
                          {
                               System.out.println("Statement printout here.");
                          }
                     }
                }

...and came up with the following output.

0 0
Statement printout here.
0 1
0 2
0 3
0 4
0 5
1 0
1 1
1 2
1 3
1 4
1 5
2 0
2 1
Statement printout here.
2 2
2 3
2 4
2 5
3 0
3 1
3 2
3 3
3 4
3 5

**Norm** · June 26th, 2012, 01:26 PM

You need to add labels to what is printed so it can be identified in the print out. A list of numbers is hard to tell what a number is. They all look the same. For example:
System.out.println("rows=" + rows + ", cols=" + cols);

Where are the values for: highestQuart and salesFigures[rows][cols]
Those two are the important ones.

The numbers that you printed are exactly what you'd expect for a nested loop.

**SOG** · June 26th, 2012, 01:45 PM

I did that part as well with this setup below...

                // Use these nested-loops to display the highest sales-division for a quarter.
                for (int rows = 0; rows < QUARTERS; rows++)
                {
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          if (salesFigures[rows][cols] > highestQuart)
                          {
                               highestQuart = salesFigures[rows][cols];
                          }
                     }
 
                     for (int cols = 0; cols < DIVISIONS; cols++)
                     {
                          System.out.println("rows = " + rows + " & cols = " + cols);
                          System.out.println("salesFigures[rows][cols] = " 
                                             + salesFigures[rows][cols] 
                                             + " & highestQuart = " + highestQuart);
 
                          if (salesFigures[rows][cols] == highestQuart)
                          {
                               System.out.println("Inside if-statement, rows = " + rows + " & cols = " + cols);
                               System.out.println("Inside of if statement, salesFigures[rows][cols] = " 
                                                  + salesFigures[rows][cols] 
                                                  + " & highestQuart = " + highestQuart);
                          }
                     }
                }

...and came up with this. (Anything that says "inside of if-statement" refers to the what the if-statements sees.)



rows = 0 & cols = 0

salesFigures[rows][cols] = 3455.0 & highestQuart = 3455.0

Inside if-statement, rows = 0 & cols = 0

Inside of if statement, salesFigures[rows][cols] = 3455.0 & highestQuart = 3455.

0

rows = 0 & cols = 1

salesFigures[rows][cols] = 456.0 & highestQuart = 3455.0

rows = 0 & cols = 2

salesFigures[rows][cols] = 455.0 & highestQuart = 3455.0

rows = 0 & cols = 3

salesFigures[rows][cols] = 456.0 & highestQuart = 3455.0

rows = 0 & cols = 4

salesFigures[rows][cols] = 654.0 & highestQuart = 3455.0

rows = 0 & cols = 5

salesFigures[rows][cols] = 456.0 & highestQuart = 3455.0

rows = 1 & cols = 0

salesFigures[rows][cols] = 6554.0 & highestQuart = 76654.0

rows = 1 & cols = 1

salesFigures[rows][cols] = 456.0 & highestQuart = 76654.0

rows = 1 & cols = 2

salesFigures[rows][cols] = 76654.0 & highestQuart = 76654.0

Inside if-statement, rows = 1 & cols = 2

Inside of if statement, salesFigures[rows][cols] = 76654.0 & highestQuart = 7665

4.0

rows = 1 & cols = 3

salesFigures[rows][cols] = 6677.0 & highestQuart = 76654.0

rows = 1 & cols = 4

salesFigures[rows][cols] = 766.0 & highestQuart = 76654.0

rows = 1 & cols = 5

salesFigures[rows][cols] = 56567.0 & highestQuart = 76654.0

rows = 2 & cols = 0

salesFigures[rows][cols] = 7665.0 & highestQuart = 76654.0

rows = 2 & cols = 1

salesFigures[rows][cols] = 567.0 & highestQuart = 76654.0

rows = 2 & cols = 2

salesFigures[rows][cols] = 8898.0 & highestQuart = 76654.0

rows = 2 & cols = 3

salesFigures[rows][cols] = 455.0 & highestQuart = 76654.0

rows = 2 & cols = 4

salesFigures[rows][cols] = 456.0 & highestQuart = 76654.0

rows = 2 & cols = 5

salesFigures[rows][cols] = 6777.0 & highestQuart = 76654.0

rows = 3 & cols = 0

salesFigures[rows][cols] = 6665.0 & highestQuart = 76654.0

rows = 3 & cols = 1

salesFigures[rows][cols] = 555.0 & highestQuart = 76654.0

rows = 3 & cols = 2

salesFigures[rows][cols] = 44.7 & highestQuart = 76654.0

rows = 3 & cols = 3

salesFigures[rows][cols] = 7887.3 & highestQuart = 76654.0

rows = 3 & cols = 4

salesFigures[rows][cols] = 5667.8 & highestQuart = 76654.0

rows = 3 & cols = 5

salesFigures[rows][cols] = 7678.0 & highestQuart = 76654.0

**Norm** · June 26th, 2012, 01:53 PM

Did you compare the values printed with the data that was in the salesFigures array. Do the values of the variables used to control the print out that is not being printed show why it is not printing?

Why isn't the line being printed for the 3rd division?

BTW The loop control variables names are not well chosen. Your data is for divisions and quarters, not rows and columns. The variable names should be for what the data is: quarter and division

What data is a row? Is it a division or a quarter? The print out should show that directly, not require you to do a mental translation.

EDIT: Some of The println statements should be BEFORE the if statements to show the values of the variables BEFORE they are tested and used.
For example this line does not make sense:
salesFigures[rows][cols] = 6554.0 & highestQuart = 76654.0

How did highestQuart get that value before the salesFigures value shows it?? The logic of the code says that the salesFigures value must be compared to the current highestQuarter value BEFORE the highestQuarter value is changed.

**SOG** · June 27th, 2012, 04:25 PM

I remember two important things you said...

The loop control variables names are not well chosen.

...and...

Some of The println statements should be BEFORE the if statements to show the values of the variables BEFORE they are tested and used.

So, I wrote this...

                 // Use these nested-loops to display the highest sales-division for a quarter.
                for (int quarters = 0; quarters < QUARTERS; quarters++)
                {
 
                     for (int divisions = 0; divisions < DIVISIONS; divisions++)
                     {
                          System.out.println("Before first if statement is all this...");
                          System.out.println("quarters = " + quarters + " & divisions = " + divisions);
                          System.out.println("salesFigures[quarters][divisions] = " 
                                             + salesFigures[quarters][divisions] 
                                             + " & highestQuart = " + highestQuart);
 
                          if (salesFigures[quarters][divisions] > highestQuart)
                          {
                               highestQuart = salesFigures[quarters][divisions];
                          }
                     }
 
                     for (int divisions = 0; divisions < DIVISIONS; divisions++)
                     {
                          System.out.println("Before second if statement is all this...");
                          System.out.println("quarters = " + quarters + " & divisions = " + divisions);
                          System.out.println("salesFigures[quarters][divisions] = " 
                                             + salesFigures[quarters][divisions] 
                                             + " & highestQuart = " + highestQuart);
 
                          if (salesFigures[quarters][divisions] == highestQuart)
                          {
                               System.out.println("Inside if-statement, quarters = " + quarters + " & divisions = " + divisions);                                                         
                          }
                     }
                }

...and came up with this below: 7 different highestQuart-values.



Before first if statement is all this...

quarters = 0 & divisions = 0

salesFigures[quarters][divisions] = 456.0 & highestQuart = 0.0

Before first if statement is all this...

quarters = 0 & divisions = 1

salesFigures[quarters][divisions] = 544.0 & highestQuart = 456.0

Before first if statement is all this...

quarters = 0 & divisions = 2

salesFigures[quarters][divisions] = 768.0 & highestQuart = 544.0

Before first if statement is all this...

quarters = 0 & divisions = 3

salesFigures[quarters][divisions] = 976.0 & highestQuart = 768.0

Before first if statement is all this...

quarters = 0 & divisions = 4

salesFigures[quarters][divisions] = 356.0 & highestQuart = 976.0

Before first if statement is all this...

quarters = 0 & divisions = 5

salesFigures[quarters][divisions] = 7876.0 & highestQuart = 976.0

Before second if statement is all this...

quarters = 0 & divisions = 0

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 0 & divisions = 1

salesFigures[quarters][divisions] = 544.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 0 & divisions = 2

salesFigures[quarters][divisions] = 768.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 0 & divisions = 3

salesFigures[quarters][divisions] = 976.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 0 & divisions = 4

salesFigures[quarters][divisions] = 356.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 0 & divisions = 5

salesFigures[quarters][divisions] = 7876.0 & highestQuart = 7876.0

Inside if-statement, quarters = 0 & divisions = 5

Before first if statement is all this...

quarters = 1 & divisions = 0

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 1 & divisions = 1

salesFigures[quarters][divisions] = 876.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 1 & divisions = 2

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 1 & divisions = 3

salesFigures[quarters][divisions] = 776.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 1 & divisions = 4

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 1 & divisions = 5

salesFigures[quarters][divisions] = 776.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 1 & divisions = 0

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 1 & divisions = 1

salesFigures[quarters][divisions] = 876.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 1 & divisions = 2

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 1 & divisions = 3

salesFigures[quarters][divisions] = 776.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 1 & divisions = 4

salesFigures[quarters][divisions] = 456.0 & highestQuart = 7876.0

Before second if statement is all this...

quarters = 1 & divisions = 5

salesFigures[quarters][divisions] = 776.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 2 & divisions = 0

salesFigures[quarters][divisions] = 123.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 2 & divisions = 1

salesFigures[quarters][divisions] = 547.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 2 & divisions = 2

salesFigures[quarters][divisions] = 848.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 2 & divisions = 3

salesFigures[quarters][divisions] = 567.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 2 & divisions = 4

salesFigures[quarters][divisions] = 8923.0 & highestQuart = 7876.0

Before first if statement is all this...

quarters = 2 & divisions = 5

salesFigures[quarters][divisions] = 4567.0 & highestQuart = 8923.0

Before second if statement is all this...

quarters = 2 & divisions = 0

salesFigures[quarters][divisions] = 123.0 & highestQuart = 8923.0

Before second if statement is all this...

quarters = 2 & divisions = 1

salesFigures[quarters][divisions] = 547.0 & highestQuart = 8923.0

Before second if statement is all this...

quarters = 2 & divisions = 2

salesFigures[quarters][divisions] = 848.0 & highestQuart = 8923.0

Before second if statement is all this...

quarters = 2 & divisions = 3

salesFigures[quarters][divisions] = 567.0 & highestQuart = 8923.0

Before second if statement is all this...

quarters = 2 & divisions = 4

salesFigures[quarters][divisions] = 8923.0 & highestQuart = 8923.0

Inside if-statement, quarters = 2 & divisions = 4

Before second if statement is all this...

quarters = 2 & divisions = 5

salesFigures[quarters][divisions] = 4567.0 & highestQuart = 8923.0

Before first if statement is all this...

quarters = 3 & divisions = 0

salesFigures[quarters][divisions] = 457.0 & highestQuart = 8923.0

Before first if statement is all this...

quarters = 3 & divisions = 1

salesFigures[quarters][divisions] = 321.0 & highestQuart = 8923.0

Before first if statement is all this...

quarters = 3 & divisions = 2

salesFigures[quarters][divisions] = 4578.0 & highestQuart = 8923.0

Before first if statement is all this...

quarters = 3 & divisions = 3

salesFigures[quarters][divisions] = 86655.0 & highestQuart = 8923.0

Before first if statement is all this...

quarters = 3 & divisions = 4

salesFigures[quarters][divisions] = 45.0 & highestQuart = 86655.0

Before first if statement is all this...

quarters = 3 & divisions = 5

salesFigures[quarters][divisions] = 78.0 & highestQuart = 86655.0

Before second if statement is all this...

quarters = 3 & divisions = 0

salesFigures[quarters][divisions] = 457.0 & highestQuart = 86655.0

Before second if statement is all this...

quarters = 3 & divisions = 1

salesFigures[quarters][divisions] = 321.0 & highestQuart = 86655.0

Before second if statement is all this...

quarters = 3 & divisions = 2

salesFigures[quarters][divisions] = 4578.0 & highestQuart = 86655.0

Before second if statement is all this...

quarters = 3 & divisions = 3

salesFigures[quarters][divisions] = 86655.0 & highestQuart = 86655.0

Inside if-statement, quarters = 3 & divisions = 3

Before second if statement is all this...

quarters = 3 & divisions = 4

salesFigures[quarters][divisions] = 45.0 & highestQuart = 86655.0

Before second if statement is all this...

quarters = 3 & divisions = 5

salesFigures[quarters][divisions] = 78.0 & highestQuart = 86655.0

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