Introduction
My previous article explained how to convert a number expressed as an octal number into a number expressed as a decimal number. This article shows how to do the reverse (decimal to octal). So let us first understand the conversion.
Octal Number: A number expressed using the base 8 number system with digits 0 to 7.
Decimal Number: A number expressed using the base 10 number system with digits 0 to 9.
Conversion Example: suppose you want to convert the number 500 expressed as a decimal to a number expressed as an octal number. Then use the following procedure.
Step 1: 500/8 Then the remainder=4, Quotient=62
Step 2: 62/8 Then the remainder=6, Quotient=7
Step 3: 7/8 Then the remainder=7, Quotient=0
Hence the equivalent octal number = 764.
Use the following procedure to create it.
Step 1
First of all you must create a new Windows Store Application.
Open Visual Studio 2012
"File" -> "New" -> "Project..."
Choose "Template" -> "Visual C#" -> "Window Store app"
Choose "Blank App (XAML)" then rename the application
![new-windows-store-app.jpg]()
Step 2
Write the following XAML code in "Mainpage.Xaml" (that is available in Solution Explorer):
<Page
x:Class="deimal_to_octal_conversion_app.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="using:deimal_to_octal_conversion_app"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d">
<Grid Background="red">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="313*"/>
<ColumnDefinition Width="254*"/>
<ColumnDefinition Width="788*"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="78*"/>
<RowDefinition Height="49*"/>
<RowDefinition Height="37*"/>
<RowDefinition Height="40*"/>
<RowDefinition Height="39*"/>
<RowDefinition Height="525*"/>
</Grid.RowDefinitions>
<TextBlock Text="Decimal to Octal Converter app" Grid.ColumnSpan="3" Grid.Row="1" Foreground="White" FontSize="20" FontFamily="Arial" TextAlignment="Center"></TextBlock>
<TextBlock Text="Enter Decimal Number :" FontFamily="Arial" FontSize="15" Foreground="White" Grid.Column="1" Grid.Row="2" Grid.RowSpan="4"></TextBlock>
<TextBox x:Name="textbox1" Grid.Column="2" Grid.Row="2" Width="200" HorizontalAlignment="Left" Height="20" VerticalAlignment="Top" />
<TextBlock Text="Eqivalent Octal Number " FontSize="15" Foreground="White" Grid.Column="1" Grid.Row="3"></TextBlock>
<TextBlock x:Name="text1" FontSize="15" Foreground="White" Grid.Column="2" Grid.Row="3" Width="200" HorizontalAlignment="Left" ></TextBlock>
<Button x:Name="button1" Grid.Column="2" Grid.Row="4" Background="Yellow" Foreground="Black" Width="150" Content="Click" Click="button1_Click"></Button>
</Grid>
</Page>
Step 3
Now write the following C# code for the button within "Mainpage.Xaml.cs".
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
namespace deimal_to_octal_conversion_app
{
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
}
private void button1_Click(object sender, RoutedEventArgs e)
{
int decnum = 0,i=0;
int[] octnum = new int[25];
decnum = int.Parse(textbox1.Text);
while (decnum != 0)
{
octnum[i++] = decnum % 8;
decnum = decnum / 8;
}
for (int j = i-1; j >= 0; j--)
{
text1.Text += octnum[j].ToString();
}
}
}
}
Step 4
Now Run your App.
![output-of-octal-app.jpg]()