в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:20:02Z

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==Display the digits of an integer in reverse order with do while loop==

<source lang="csharp">using System;

class MainClass {
public static void Main() {
int num;
int nextdigit;

num = 198;

Console.WriteLine("Number: " + num);

Console.Write("Number in reverse order: ");

do {
nextdigit = num % 10;
Console.Write(nextdigit);
num = num / 10;
} while(num > 0);

Console.WriteLine();
}
}</source>
<pre class=codeResult>Number: 198
Number in reverse order: 891</pre>

==Do while loop==

<p>A do-while loop will always execute at least once.</p>
<p>The general form of the do-while loop is</p>

<source lang="csharp">do {
statements;
} while(condition);</source>

==Do / while loop with a console read==

<source lang="csharp">using System;
using System.IO;
class MainClass
{
public static void Main(string[] args)
{
string ans;
do
{
Console.Write("Are you done? [yes] [no] : ");
ans = Console.ReadLine();
}while(ans != "yes");
}
}</source>
<pre class=codeResult>Are you done? [yes] [no] : yes</pre>

==Use the do while statement to implement Newton"s method for finding the square root of a number==

<source lang="csharp">using System;
public class MainClass {
public static void Main( ) {
double epsilon = 1.0e-9;
double guess = 11.0;
double result = 0.0;
double value = 2;
result = ((value / guess) + guess) / 2;
do {
Console.WriteLine( "Guess Value = {0}", guess );
Console.WriteLine( "Result Value = {0}", result );
guess = result;
result = ((value / guess) + guess) / 2;
} while( Math.Abs(result - guess) > epsilon );
Console.WriteLine("The approx sqrt of {0} is {1}", value, result );
}
}</source>
<pre class=codeResult>Guess Value = 11
Result Value = 5.59090909090909
Guess Value = 5.59090909090909
Result Value = 2.97431633407243
Guess Value = 2.97431633407243
Result Value = 1.82336988350512
Guess Value = 1.82336988350512
Result Value = 1.46012001740362
Guess Value = 1.46012001740362
Result Value = 1.41493521627426
Guess Value = 1.41493521627426
Result Value = 1.41421374640426
Guess Value = 1.41421374640426
Result Value = 1.41421356237311
The approx sqrt of 2 is 1.41421356237309</pre>

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в 15:31, 26 мая 2010

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