Question

Need some help experts. I have a double number array, example:

{{1, 8}, {4, 5}, {7, 9}, {3, 1}, {9, 3}, {5, 9}, {8, 8}, {9, 9}, {7, 3}, {2, 1}, {5, 4}};

Using C#, what is a strategic way to display the frequencies of each numeric digit? I need to put the frequency numbers into textBoxes in a Visual Studio Form.

Answer 1

//Form1.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace NumFrequency
{
    public partial class Form1 : Form
    {
        List<int[]> list = new List<int[]>();
        List<int> array = new List<int>();

      
        char[] split_at = { ',' };
        public Form1()
        {
          
            InitializeComponent();
          
        }
        private int getTotalNums(string[] nums)
        {
            int i = 0;
            int len = nums.Length;
            int total = 0;
            for(i = 0;i<len;i++)
            {
                try
                {
                    Convert.ToInt32(nums[i]);
                    total++;
                }
                catch(Exception)
                {
                    MessageBox.Show((nums[i].Equals("") ? "null character" : nums[i]) + " is not a Integer");
                }
            }
            return total;
        }
        private void setNumbers(int[] numbers,string[] nums)
        {
            int i;
            int len = nums.Length;
            int pos = 0;
            int num;
            for(i = 0;i < len;i++)
            {
                try
                {
                    num = Convert.ToInt32(nums[i]);
                    numbers[pos] = num;
                    array.Add(num);
                    pos++;
                }
                catch(Exception)
                {
                }
            }
        }
        private void getNumbers()
        {
            string[] nums = input.Text.Split(split_at, StringSplitOptions.None);
            int totalNums = getTotalNums(nums);
            if(totalNums > 0)
            {
                int[] numbers = new int[totalNums];
                setNumbers(numbers, nums);
                list.Add(numbers);
              
            }
            else
            {
                MessageBox.Show("Number of integers given should be > 1");
            }
            input.Text = "";
        }
        private void displayNumbers()
        {
            int i,j;
            outputDisp.Text = "Displaying Double/more numbers entered:- ";
            outputDisp.AppendText("{ ");
            int len;
            for(i = 0; i < list.Count; i++ )
            {
                outputDisp.AppendText(" { ");
                len = list[i].Length;
                for(j = 0;j < len;j++)
                {
                    outputDisp.AppendText("" + list[i][j]);
                    if(j < len - 1)
                    {
                        outputDisp.AppendText(", ");
                    }
                    else
                    {
                        outputDisp.AppendText(" } ");
                    }
                }

            }
            outputDisp.AppendText(" } ");
        }
        private void calculateFrequency()
        {
            array.Sort();
            int i;
            int count = 1;
            int num = array[0];
            outputFreq.Text = "Displaying Frequency of each digit:- ";
            for(i = 0;i < array.Count - 1 ;i++)
            {
                if(array[i] == array[i+1])
                {
                    count++;
                }
                else
                {
                    outputFreq.AppendText(" Frequency of " + num + " : " + count+" ");
                    num = array[i + 1];
                    count = 1;
                }
            }
            outputFreq.AppendText(" Frequency of " + num + " : " + count + " ");
        }
        private void addNum_Click(object sender, EventArgs e)
        {
            getNumbers();
        }

        private void displayNum_Click(object sender, EventArgs e)
        {
            displayNumbers();
        }

        private void calFrequency_Click(object sender, EventArgs e)
        {
            calculateFrequency();
        }
    }
}

//Form1.Designer.cs
namespace NumFrequency
{
    partial class Form1
    {
        /// <summary>
        /// Required designer variable.
        /// </summary>
        private System.ComponentModel.IContainer components = null;

        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }

        #region Windows Form Designer generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.label1 = new System.Windows.Forms.Label();
            this.input = new System.Windows.Forms.TextBox();
            this.msg = new System.Windows.Forms.ToolTip(this.components);
            this.addNum = new System.Windows.Forms.Button();
            this.displayNum = new System.Windows.Forms.Button();
            this.calFrequency = new System.Windows.Forms.Button();
            this.outputFreq = new System.Windows.Forms.TextBox();
            this.outputDisp = new System.Windows.Forms.TextBox();
            this.SuspendLayout();
            //
            // label1
            //
            this.label1.AutoSize = true;
            this.label1.Location = new System.Drawing.Point(91, 24);
            this.label1.Name = "label1";
            this.label1.Size = new System.Drawing.Size(114, 13);
            this.label1.TabIndex = 0;
            this.label1.Text = "Enter Double Numbers";
            //
            // input
            //
            this.input.Location = new System.Drawing.Point(211, 21);
            this.input.Name = "input";
            this.input.Size = new System.Drawing.Size(117, 20);
            this.input.TabIndex = 1;
            this.msg.SetToolTip(this.input, "Enter two or more numbers separated by comma(,)");
            //
            // msg
            //
            this.msg.AutoPopDelay = 500;
            this.msg.InitialDelay = 0;
            this.msg.ReshowDelay = 100;
            //
            // addNum
            //
            this.addNum.Location = new System.Drawing.Point(334, 12);
            this.addNum.Name = "addNum";
            this.addNum.Size = new System.Drawing.Size(119, 37);
            this.addNum.TabIndex = 2;
            this.addNum.Text = "Add Numbers";
            this.msg.SetToolTip(this.addNum, "Enter two or more numbers separated by comma(,)");
            this.addNum.UseVisualStyleBackColor = true;
            this.addNum.Click += new System.EventHandler(this.addNum_Click);
            //
            // displayNum
            //
            this.displayNum.Location = new System.Drawing.Point(156, 59);
            this.displayNum.Name = "displayNum";
            this.displayNum.Size = new System.Drawing.Size(117, 36);
            this.displayNum.TabIndex = 3;
            this.displayNum.Text = "Display Numbers";
            this.msg.SetToolTip(this.displayNum, "Display array of numbers entered");
            this.displayNum.UseVisualStyleBackColor = true;
            this.displayNum.Click += new System.EventHandler(this.displayNum_Click);
            //
            // calFrequency
            //
            this.calFrequency.Location = new System.Drawing.Point(293, 59);
            this.calFrequency.Name = "calFrequency";
            this.calFrequency.Size = new System.Drawing.Size(113, 36);
            this.calFrequency.TabIndex = 4;
            this.calFrequency.Text = "Calculate Frequency";
            this.msg.SetToolTip(this.calFrequency, "Calculate frequency of numbers entered");
            this.calFrequency.UseVisualStyleBackColor = true;
            this.calFrequency.Click += new System.EventHandler(this.calFrequency_Click);
            //
            // outputFreq
            //
            this.outputFreq.Location = new System.Drawing.Point(298, 126);
            this.outputFreq.Multiline = true;
            this.outputFreq.Name = "outputFreq";
            this.outputFreq.ScrollBars = System.Windows.Forms.ScrollBars.Both;
            this.outputFreq.Size = new System.Drawing.Size(250, 181);
            this.outputFreq.TabIndex = 5;
            //
            // outputDisp
            //
            this.outputDisp.Location = new System.Drawing.Point(12, 126);
            this.outputDisp.Multiline = true;
            this.outputDisp.Name = "outputDisp";
            this.outputDisp.ScrollBars = System.Windows.Forms.ScrollBars.Both;
            this.outputDisp.Size = new System.Drawing.Size(250, 181);
            this.outputDisp.TabIndex = 6;
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(560, 319);
            this.Controls.Add(this.outputDisp);
            this.Controls.Add(this.outputFreq);
            this.Controls.Add(this.calFrequency);
            this.Controls.Add(this.displayNum);
            this.Controls.Add(this.addNum);
            this.Controls.Add(this.input);
            this.Controls.Add(this.label1);
            this.Name = "Form1";
            this.Text = "Frequency Calculator";
            this.ResumeLayout(false);
            this.PerformLayout();

        }

        #endregion

        private System.Windows.Forms.Label label1;
        private System.Windows.Forms.TextBox input;
        private System.Windows.Forms.ToolTip msg;
        private System.Windows.Forms.Button addNum;
        private System.Windows.Forms.Button displayNum;
        private System.Windows.Forms.Button calFrequency;
        private System.Windows.Forms.TextBox outputFreq;
        private System.Windows.Forms.TextBox outputDisp;
    }
}

//Program.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace NumFrequency
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new Form1());
        }
    }
}

Frequency Calculator Enter Double Numbers dd NumberS Display Numbers Calculate Frequency

Frequency Calculator Enter Double Numbers Add Numbers Display Numbers Calculate Frequency Displaying Double/more numbers entered: Frequency of 1:3 1.21 12,31 1A. 5) fA. 21 13,2, 3, 4,5, 6,2, 1.1.3 Frequency of 2:5 Frequency of 3:4 Frequency of 4:3 Frequency of 5:2 Frequency of 6:1

File Edit earch View Document Project Build Iools Help New Open orml.cs Form1.Designer.cs Program.cs 압 ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit using System: using Syatem.Collections Generic: 3 using System.ComponentModel: 4 using System.Data: 5 using Syatem.Draving: using System.Ling 7 using System.Text: using System.Threading.Tasks: 9 using system.Windos.Forms: 10 12 13 14 15 public partial class Formi Fornm Listcint listnew List<intii> List<int> arraynew List<int> O 17 18 19 20 21 char split_at-: public Forai O 23 24 25 26 27 28 29 30 31 32 InitializeComponent private int getTotalNuma (string[] numa) int i -0 int len numa Length: int total0: for (i -0:icien:i++) try 34 35 36 37 Convert ToInt32 (nums [i]) total+ 1204 AM o tl 2/16/2019 14 ng: U (with kr

File Edit earch View Document Project Build Iools Help New Open orml.cs Form1.Designer.cs Program.cs ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit 38 39 catch (Exception) MessageBox . Show {{nums [1]·Equals{"") ? "null character " nums [1]) " : + is not a Integer"); 41 42 43 return total: 45 46 47 48 49 S0 51 52 53 54 private void setNumbers (intti numbers, stringti nums) int i: int len = nums-Length; int pos0 int num: for (i-0;i < len ; i++) try num - Convert ToInt32 (nums [i]) numbers po num array.Add (num) 56 57 58 59 60 61 62 63 64 65 catch (Exception) private void getNunbers ) 67 68 69 70 71 72 73 stringl nums-input.Text.Split (split at, StringSplitoptions. None) int totalNumsgetTotalNums(numg) inti numbers-new int[totalNums]: getNumbers (numbers, nums) 119t.Add (numbers) line: 1 / 146 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open orml.cs Form1.Designer.cs Program.cs ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit 119t.Add (numbers) 74 75 76 else 78 79 80 81 82 83 84 85 86 87 MessageBox.ShoM("Number of integers given should be > 1") input.Text private void displayNumbers ) int i,j outputDisp.Text"D1aplaying Double/more numbers entered:-n" outputDisp.AppendText ("(An") int len: 89 90 91 92 93 94 95 96 97 98 outputDisp.AppendText (t") len list[i].Length: outputDisp.AppendText"1ist[i] (51) outputD1sp.AppendText") else 100 101 102 103 104 105 106 107 108 109 outputDisp.AppendText (" n" outputDisp.AppendText( n") private void calculateFrequency line: 1 / 146 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit orml.cs Form1.Designer.cs Program.cs 107 108 109 110 private void calculateFrequency) 112 113 114 115 116 array.Sort int 1: int count 1: int numarray[0]: outputFreq.TextDisplaying Frequency of each digit:-n if (arrayarray[i+1]) 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 count44 else outputFreq.AppendText(" Frequency of"num +""count+"" num-arrayli 11: count -1: outputFrea. AppendText(" Erequency of"+num +"count +"n") private void addNum_click (object sender, Eventargs e) getNumbers private void diaplayNum ciick (object sender, Eventargs e) displayNumbers ): private void calFrequency_click (object sender, EventArgs e) calculateFrequency line: 1 / 146 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open orml.cs Form1.Designer.cs Program.cs ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit 112 113 119 115 116 array.sort int i: int count1 int num array[o outputFreq. Text"D1aplaying Frequency of each digit:-In" for (i-0:i < array.Count-1 :it+) if (arrayarray[i+1]) 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 139 135 136 137 138 139 140 141 142 143 144 145 146 count else outputFrea. AppendText(" Frequency of"+num +""count+"n") num-array[i +11: count 1 ; outputFreq.AppendText (" Frequency ofnum+"+count") private void addNum_ciick (object sender, EventArgs e) getNumbers ) private void displayNum Click (object sender, EventArgs c) displayNumbers ) private void calFrequeney_Click (object sender, EventArgs e) calculateFrequency line: 1 / 146 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open Form1.cs X Form1.Designer.cs X Program.csX 압 ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit partial class Formi 1aummarys /// Required designer variable 1/summary private System.ComponentModel.IContainer componentsnull; 10 <summary 12 13 14 15 1Clean up any resources being used /11 </summary> /// <param name="disposing" >true if managed resources should be disposed; otherwise, false.</param> protected override void Dispose (bool disposing) if (disposing&&(components -null)) 17 18 19 20 21 components.Dispose O base.Dispose (disposing) 23 24 25 26 #region Windows Form Designer generated code /// くaumary> /// Required method for Designer support - do not modify 1I the contents of this method rith the code editor /11 </summary> private void Init1a11zeComponent [) 28 29 30 31 32 34 35 36 37 this.componentsnew System.ComponentModel.Container ) this.labellnew System.WindowS Forms LabelD this.inputnew System.Nindows.Forms TextBox) this.msg new System.Windows Forms. ToolTip (this.conponents) this.addNum-new System.Windors Forms Button ) this.displayNum new system.Windows.Forms Button [ this.calfrequencynew System.Nindows.Eorms.ButtonD: line: 1 / 148 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open Form1.cs X Form1.Designer.cs X Program.csX 압 ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit 37 38 39 this.calFrequency new syatem.windows Forms.ButtonD this.outputFrenew System.Windows. Forms.TextBox ): this.outputDisp-new Systen.Mindows. Forms. TextBox(); this.Suspendtayout O ร์1 ร์2 ร์ฐ // label1 this.label1 Autosize-true: this.labell.Location -new system.Draring. Point (91, 24) this.label1.Name"label1" this.label1.sizenew System.Draving.Size (114, 13) this.labeli TabIndex - O: this. labe 11.Text "Enter Double Numbers". 45 ร์6 47 4 8 49 50 51 52 53 54 // input this.input.Location new System.Draring. Point (211, 21) this.input.Name"input" this.input.Sizenew System.Draring.Size (117, 20): this. input . TabIndex = 1; this.msg.SetIoolTip this.input, "Enter tro or more numbers separated by comma)") 56 57 58 60 61 62 63 64 65 this.msg.AutoEopDelay 500; this.msg.InitialDelay-0: this.msg.ReshowDelay-100 // addNum 67 68 69 70 71 72 73 this.addNum.Locationner System.Drawing. Point (334, 12) this.addNum.Name -addNu" this.addNum.51zenew System.Drawing.S1ze (119, 37) this.addNum. TabIndex2 this.addNum.Text"Add Numbers" this msg.SetToolTip (this.addNu,"Ente two or more numbers separated by comma ()") this.addNum. UseViaualstyleBackcolortrue: line: 1 / 148 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find Jump to Quit Form1.cs X Form1.Designer.cs X Program.csX 71 72 73 74 75 76 this.addNum. Text"Add Numbers" this.mag.SetToolTip (this.addNum, "Enter two or more numbers separated by comma()") this.addNum.UseVisualStyleBackColortrue: this.addNum.Click new system.EventHandler (this.addNum ciiek) // displayNum 78 79 80 81 82 83 84 85 86 87 this.displaysun.Location= new system . Drawing. Point (156. 59); this.d1splayNum.Name"displayN this.displayNum.Size-ne System.Drawing.Size (117, 36): this.displayNum.TabIndex-3 this.displayNum.Text "Display Numbers" this.mag.SetIoolTip (this.d1splayNum, "D1splay array of numbers entered") this.displayNum.UsevisualStyleBackColor-truc: this.displayNum.Click e System.EventHandler (this.displayNum Click) / calFrequency 89 90 91 92 93 94 this.calFrequency. Location-ne System.Drawing. Point (293, 59) this.calFrequency Name "calFrequency" this.calFrequency . Size new System . Drawing . Size(113, 36); this.calFrequency. TabIndex4 this.calFrequency.Text "Calculate Frequenay" this msg. SetToolTip (this.calFrequency, "Calculate Irequency of numbers entered") this.calFrequency.Usev this.calFrequency-Clickne System.EventHandler (this.calFrequency_click): isualStyleBackColor = true ; 96 98 // outputFreq 100 101 202 this.outputFreg. Location-new System. Drawing. Point (298, 126): this.outputFreq.Multilinetrue this.outputFreq.Nameoutputereq" this.outputFreq . ScrollBars = System.Windows. Forma . ScrollBars Both; this.outputFrea.Size-new Syotem.Drawing.Size (250, 181) this.outputFreq.TabIndex -5 104 105 106 107 / outputDisp line: 1 / 148 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Jump to Quit Form1.cs X Form1.Designer.cs X Program.csX // outputDisp 108 109 this.outputDisp. Location-ner System. Draring Point (12, 126): this.outputDisp.Multiline true this.outputD1sp.Name"outputD1sp" this.outputDisp.ScrollBars-System.Windows. Forms.ScrollBars. Both: this.outputDisp.Sizener System.Drawing.Size (250, 181) this.outputDisp.TabIndex 6 112 113 114 115 116 Form this.AutoscaleDimensionsnew System.Drawing.SizeF(6F, 13F) this AutoscaleModeSystem.Windows Forms.AutoscaleMode.Font this.clientSizne System.Drawing.Size (S60, 319) this.Controls.Add (this.outputDisp) this.Controls ndd (this.outputFreq) this.Controis Add (this.calFrequency) this.Controls.Add (this.displayum) this.Controls.Add (this.addNum) this.Controls ndd (this.input) this.Contro1s.Add (this.labeli): this.NameFormi" this.Text"requency Calculator" this.Resumetayout (false) this.PerformLayout 119 120 121 5 124 125 126 127 128 129 132 133 134 # endregion 136 138 139 140 141 142 143 private System.Windows Forms.Label labell: private System.Windows Forms TextBox input: private Syatem.Nindows.Forms ToolTip maq private Syatem.Windos Forms Button addNum: private System.Windows Forms.Button displayNum: private System.Windows Forms Button calFrequency: private System.Nindows.Forms.TextBox outputFreq: line: 1 / 148 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find Jump to Quit Form1.cs X Form1.Designer.cs X Program.csX 112 113 114 115 116 this.outputD13p . ScrollBars = System.Windows. Forma·ScrollBar s. Both; this.outputDisp.Size-new System. Draring.Size (250, 181): this.outputDisp.TabIndex -6: /Form1 118 119 120 121 122 123 129 125 126 127 128 129 130 this.AutoScaleDimensionsner System. Draring.SizeF(6F, 13F) this NutoscaleMode System.Windows.Forms utoscaleMode.Font this.Cl1entsizenew System.Drawing.S1ze (560, 319) this.Controls.Add (this.outputDisp) this.Controls.Add (this.outputFreg) this.Controls ndd (this.calFrequency) this.Contro1s.Add(this.displayNum) this.Controls.Add (this.addNum) this.Controls.Add (this.input) this.Controls ndd (this.labell) this.Textrequency Calculator" this.ResumeLayout (false) this.PerformLayout O 133 134 135 136 137 138 139 140 141 142 143 าร์ร์ 145 146 147 148 tendregion private System.Windows Forms Label label1: private System.Windows Forms TextBox input: private System.Windows Forms.ToolTip msg: private Syatem.Nindows.Forms.Button addNum private System.Windows Forms. Button displayum: private System.Windows Forms Button calFrequency private System.Windows Forms TextBox outputereq: private System.Nindows.Forms TextBox outputD1sp: line: 1 / 148 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown

File Edit earch View Document Project Build Iools Help New Open Form1.cs X Form1.Designer.cs Program.es ave Save All Revert CloseBack Forward Compile BuildExecute Color Chooser Find ump toQuit 1 sing Syatem: using Syatem.Collections Generic: 3 using System.Linq: 4 using System.Threading.Tasks: 5 using Syatem.Windows.Forms 7 nanespace NunFrequency static class Program 10 11 <summary /1/ The main entry point for the application 1 /sumary STAThread] static void Main ) 12 13 าร์ 15 16 17 18 19 20 21 Appiication.Enablevisualstyles Application.SetCompatibleTextRenderingDefault (false) Application Run (ne Form1O) 23 line: 1 / 23 col: 0 sel: 0 INS TAB mode: CRLF encoding: UTF-8 (with BOM) filetype: C# scope: unknown