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Overview

After entering all input values, the program generates two types of output:
  1. Average calculation - The mean of all entered values
  2. Difference array - Element-wise subtraction of array2 from array1

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Average Output

The program calculates and displays the average of all 14 input values using this format from Main.java:36: 
El promedio es: %.2f

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Format Details

  • The average is formatted to 2 decimal places using printf("%.2f")
  • The calculation uses: (double) sumaTotal / totalElementos
  • totalElementos is always 14 (7 elements × 2 arrays)

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Example Outputs

El promedio es: 25.00

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Difference Array Output

The program displays the element-wise difference between array1 and array2 from Main.java:38-41: 
Arreglo de diferencias
Posición0:value
Posición1:value
Posición2:value
Posición3:value
Posición4:value
Posición5:value
Posición6:value

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Calculation Formula

For each position i: 
arrayDiferencia[i] = array1[i] - array2[i];
This is computed in Main.java:29-31.
Note: There’s no space between “Posición”, the index number, the colon, and the value in the actual output format.

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Complete Output Example

Here’s a full example showing both output components:

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Input Values

First array: 10, 20, 30, 40, 50, 60, 70
Second array: 5, 10, 15, 20, 25, 30, 35

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Program Output

El promedio es: 40.00
Arreglo de diferencias
Posición0:5
Posición1:10
Posición2:15
Posición3:20
Posición4:25
Posición5:30
Posición6:35

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Explanation

1

Average Calculation

Expected Sum = (10+20+30+40+50+60+70) + (5+10+15+20+25+30+35)
Expected Sum = 280 + 140 = 420
Expected Average = 420 / 14 = 30.00

Actual Sum (with bug) = 280 + 280 = 560
Actual Average = 560 / 14 = 40.00
Due to a bug in Main.java:25, the actual calculation adds array1[i] twice instead of adding array2[i]. The program displays 40.00 instead of the correct 30.00.
2

Difference Calculations

Each position shows: array1[i] - array2[i]
  • Position 0: 10 - 5 = 5
  • Position 1: 20 - 10 = 10
  • Position 2: 30 - 15 = 15
  • Position 3: 40 - 20 = 20
  • Position 4: 50 - 25 = 25
  • Position 5: 60 - 30 = 30
  • Position 6: 70 - 35 = 35

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Output with Negative Numbers

The difference array can contain negative values when array2[i] > array1[i]:

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Example

Input:
  • First array: 5, 10, 15, 20, 25, 30, 35
  • Second array: 10, 20, 30, 40, 50, 60, 70
Output: 
El promedio es: 20.00
Arreglo de diferencias
Posición0:-5
Posición1:-10
Posición2:-15
Posición3:-20
Posición4:-25
Posición5:-30
Posición6:-35
Due to the bug in line 25, the average shown is 20.00 (array1 sum counted twice: 140+140=280, 280/14=20.00). The correct average should be 30.00 (140+280=420, 420/14=30.00).

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Reading the Output

Average Output: Located at the beginning, shows the overall mean with exactly 2 decimal places.Difference Array: Shows 7 lines, each representing the subtraction result at that index position (0-6).
To verify the calculations manually:
  1. Add all 14 input numbers and divide by 14 for the average (accounting for the bug)
  2. Subtract each second array value from the corresponding first array value for differences

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