Question

Convert Project #1 into a GUI program, following the following requirements:

• Provide two text fields: one receives the length of the sequence, and the second receive the sequence (each number separated by a comma). There may, or may not, be space in between the comma and the number element.
• Provide a clear button that has an event listener attached to it. When pressed, the two text fields are emptied. The event listener should be defined and implemented as an anonymous inner class.
• Provide a radio button group. Within that group, provide 4 radio buttons: sum, avg, min, max. Attach an event listener to each radio button. When the specific radio button is pushed by the end user, the corresponding calculation is performed, and the result is displayed in a pop up GUI box. Define an inner class for this event listener.
• Utilize a layout of your choice for the design. Recommended are FlowLayout or GridLayout.

Feel free to augment the program further, if you have time. Recommended are playing with mouse events and nesting components (panels).

Please upload your source code to this assessment. Please name your file as follows:

CS401Recitation10SC_YOURLASTNAME_YOURLOGINID.java [please put all source code in one file -- all class/interface/method definitions, and the actual application]

For reference, Project #1:  For this project, you are tasked with creating a program that performs basic numerical analysis on a sequence of integer numbers inputted into your program. Ask the end user for a number, which indicates the length of the sequence (how many numbers are in the data set to be inputted by the end user and analyzed by your program). Then, ask the end user to enter each integer number via the keyboard, one at a time, that comprises the sequence. Do not store each number in memory - perform the computations as the data is entered. Compute the average of the sequence, the summation of all numbers in the sequence, the minimum number in the sequence, and the maximum number in the sequence. Print your data statistics out to the end user via monitor output.

please help ASAP!!! - I just need a  general structure would help me get started!!!! - I don't need the entire code :)

Answer 1

Answer:

1. Design the Interface as per the question ( as below )

Enter Length of Sequence Enter the Sequence (Separated by comma eg: 1,5,6) O Sum Average Minimum Maximum Calculate Clear

2. Code for Calculate Button for calculating Sum ( Coded only to calculate Sum )

(Paste inside the click event of the button)

----------------------------START------------------------------------------------------------------------

private void btnCalculate_Click(Object sender, tangible.EventArgs e)
{
           int seqFromUser = CharCountWithoutComma(txtSequence.Text);
           if (Integer.parseInt(txtSequenceLength.Text.toString()) == seqFromUser)

           {
               if (rbSum.Checked == true)
               {
                   if (!txtSequence.Text.endsWith(","))
                   {
                       int sumOfSequence = Sum(txtSequence.Text.trim());
                       JOptionPane.showMessageDialog("The sum of the Sequence: " + String.valueOf(sumOfSequence), "Sum");
                   }
                   else
                   {
                       JOptionPane.showMessageDialog("Remove comma at the end of the sequence and proceed", "Incorrect Sequence");
                   }

               }
           }
           else
           {
               JOptionPane.showMessageDialog("The sequence length is not matching", "Error");
           }

}

public final int CharCountWithoutComma(String str)
{
           String[] arr = str.split("[,]", -1);
           String allChars = "";
           for (String s : arr)
           {
               allChars += s;
           }
           int length = allChars.length();
           return length;
}
public int Sum(string sumNumbers)
{
string[] arr = sumNumbers.Split(',');
int sum = 0;
foreach (string s in arr)
{
sum += Convert.ToInt32(s);
}

return sum;
}

----------------------------START------------------------------------------------------------------------

Code Explanation to find SUM

----------------------------

1. CharCountWithoutComma function will calculate the length of the sequence entered by the user

2. Checking whether the "length of the sequence == the actual sequence length"

3. Also, checking the sequence should not contain any comma at the end (eg: 1,4,6,) to avoid parsing error

(Point 2 & 3 are some additional checking from my side to enhance the program)

4. If all the conditions ok, the sum function will calculate the sum of the sequence.

Output

-----------

Catching Incorrect Sequence Length

Enter Length of Sequence Enter the Sequence 1.2.3.4.5.6.7 (Separated by comma eg: 1,5,6) Sum o Average O Minimum Maximum - Calculate Calculate Clear Clear

Enter Length of Sequence 5 Enter the Sequence 1.2.3.4.5.6.7 (Separated by comma eg: 1,5,6) O O Average Minimum Maximum Calculate Clear Clear Error The sequence length is not matching Ток |

Catching comma at the end of the sequence

Enter Length of Sequence 5 Enter the Sequence 1.2.3.4.0 (Separated by comma eg: 1 (Separated by comma eg: 1,5,6) O Sum Average Minimum Maximum Calculate Clear Incorrect Sequence Remove comma at the end of the sequence and proceed Ток |

Calculating Sum

Enter Length of Sequence 5 Enter the Sequence 1.2.3.4.5 (Separated by comma eg: 1,5,6) Sum o Average Minimum Maximum Calculate Clear Sum The sum of the Sequence: 15 Гок

Code to Clear text fields

----------------------------------

--------------------------------------------START--------------------------------------------------------------

private void btnClear_Click(Object sender, tangible.EventArgs e)
{
           txtSequenceLength.Text = "";
           txtSequence.Text = "";
}

​​​​​​​------------------------------------------------------------END--------------------------------------------------------------

Please Note:

1. I coded only for the SUM function.

2. Just modify the "Sum" to calculate the other like Average, Min, Max (Small change is required)

3. Use NetBeans

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