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code-kata-fizz-buzz-game.html
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code-kata-fizz-buzz-game.html
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<meta name="description" content="I stared to practice recently after reading more about how practicing is important for programmer to become professional and one way of practicing is Coding Kata. I found a lot of problem to implement to practice and perform coding kata. This post I'll talk about Fizz Buzz Game a.k.a. Bizz Buzz Game, it's numerical/math game, if the number is divisible by 3 replace it with fizz, or if number divisible by 5 replace it with buzz, or if number is divisible by 3 and 5 replace it with fizzbuzz. For example if we count from 1 to 20 it'll be like this: 1, 2, fizz, 4, buzz, fizz, 7, 8, fizz, buzz, 11, fizz, 13, 14, fizzbuzz, 16, 17, fizz, 19, buzz. So how to code this game: First I thought I can solve this game by: If (this number is divisible by 3 and not divisible by 5) return fizz else if (this number is not divisible by 3 and divisible by 5) return buzz else if (this number is divisible by 3 and divisible by 5) return buzzfizz else if(this number is not divisible by 3 and not divisible by 5) return the number …" />
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<meta property="og:description" content="I stared to practice recently after reading more about how practicing is important for programmer to become professional and one way of practicing is Coding Kata. I found a lot of problem to implement to practice and perform coding kata. This post I'll talk about Fizz Buzz Game a.k.a. Bizz Buzz Game, it's numerical/math game, if the number is divisible by 3 replace it with fizz, or if number divisible by 5 replace it with buzz, or if number is divisible by 3 and 5 replace it with fizzbuzz. For example if we count from 1 to 20 it'll be like this: 1, 2, fizz, 4, buzz, fizz, 7, 8, fizz, buzz, 11, fizz, 13, 14, fizzbuzz, 16, 17, fizz, 19, buzz. So how to code this game: First I thought I can solve this game by: If (this number is divisible by 3 and not divisible by 5) return fizz else if (this number is not divisible by 3 and divisible by 5) return buzz else if (this number is divisible by 3 and divisible by 5) return buzzfizz else if(this number is not divisible by 3 and not divisible by 5) return the number …"/>
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<h1 id="code-kata-fizz-buzz-game">Code Kata: Fizz Buzz Game</h1>
<p>Posted on Tue 20 December 2011 in <a href="http://www.emadmokhtar.com/category/developer.html">Developer</a> <b>Read in 3 min.</b></p>
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<p>I stared to practice recently after reading more about how practicing is important for programmer to become professional and one way of practicing is <a href="http://www.emadmokhtar.com/coding-kata.html">Coding Kata</a>. I found a lot of problem to implement to practice and perform coding kata.</p>
<p>This post I'll talk about Fizz Buzz Game a.k.a. Bizz Buzz Game, it's numerical/math game, if the number is divisible by 3 replace it with fizz, or if number divisible by 5 replace it with buzz, or if number is divisible by 3 and 5 replace it with fizzbuzz. For example if we count from 1 to 20 it'll be like this: 1, 2, fizz, 4, buzz, fizz, 7, 8, fizz, buzz, 11, fizz, 13, 14, fizzbuzz, 16, 17, fizz, 19, buzz.</p>
<p>So how to code this game:</p>
<p>First I thought I can solve this game by:</p>
<p>If (this number is divisible by 3 and not divisible by 5) return fizz</p>
<p>else if (this number is not divisible by 3 and divisible by 5) return
buzz</p>
<p>else if (this number is divisible by 3 and divisible by 5) return
buzzfizz</p>
<p>else if(this number is not divisible by 3 and not divisible by 5)
return the number</p>
<div class="highlight"><pre><span></span> <span class="c1">/// <summary></span>
<span class="c1">/// Solve fizz buzz problem</span>
<span class="c1">/// if number divisible by 3 and not by 5 return fizz</span>
<span class="c1">/// if number divisible by 5 and not by 3 return buzz</span>
<span class="c1">/// if number divisible by 15 return fizzbuzz</span>
<span class="c1">/// </summary></span>
<span class="c1">/// <param name="number">The number.</param></span>
<span class="c1">/// <returns>fizz, buzz, or fizzbuzz</returns></span>
<span class="k">static</span> <span class="k">public</span> <span class="kt">string</span> <span class="nf">FizzBuzz</span><span class="p">(</span><span class="kt">int</span> <span class="n">number</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">string</span> <span class="n">returnString</span> <span class="p">=</span> <span class="kt">string</span><span class="p">.</span><span class="n">Empty</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">3</span> <span class="p">==</span> <span class="m">0</span> <span class="p">&&</span> <span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">!=</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"fizz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">3</span> <span class="p">!=</span> <span class="m">0</span> <span class="p">&&</span> <span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"buzz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">3</span> <span class="p">==</span> <span class="m">0</span> <span class="p">&&</span> <span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"fizzbuzz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">3</span> <span class="p">!=</span> <span class="m">0</span> <span class="p">&&</span> <span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">!=</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="n">number</span><span class="p">.</span><span class="n">ToString</span><span class="p">();</span>
<span class="p">}</span>
<span class="k">return</span> <span class="n">returnString</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
<p>But when I look at the code I feel like I can optimize it more by remove
the and between two logical conditions, as the following.</p>
<div class="highlight"><pre><span></span> <span class="c1">/// <summary></span>
<span class="c1">/// Solve fizz buzz problem</span>
<span class="c1">/// if number divisible by 3 and not by 5 return fizz</span>
<span class="c1">/// if number divisible by 5 and not by 3 return buzz</span>
<span class="c1">/// if number divisible by 15 return fizzbuzz</span>
<span class="c1">/// </summary></span>
<span class="c1">/// <param name="number">The number.</param></span>
<span class="c1">/// <returns>fizz, buzz, or fizzbuzz</returns></span>
<span class="k">static</span> <span class="k">public</span> <span class="kt">string</span> <span class="nf">FizzBuzz</span><span class="p">(</span><span class="kt">int</span> <span class="n">number</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">string</span> <span class="n">returnString</span> <span class="p">=</span> <span class="kt">string</span><span class="p">.</span><span class="n">Empty</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">3</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"fizzbuzz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="nf">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">!=</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"fizz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">else</span>
<span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"buzz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="nf">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">!=</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="n">number</span><span class="p">.</span><span class="n">ToString</span><span class="p">();</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">return</span> <span class="n">returnString</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
<p>After observing the results, I found that fizzbuzz only appears when the number is divisible by 15, so I rewrite my pseudocodecode</p>
<p>If (this number is divisible by 15) return buzfizz</p>
<p>else if (this number is divisible by 3) return fizz</p>
<p>else if (this number is divisible by 5) return buzz</p>
<p>else return the number</p>
<div class="highlight"><pre><span></span> <span class="c1">/// <summary></span>
<span class="c1">/// Solve fizz buzz problem</span>
<span class="c1">/// if number divisible by 3 and not by 5 return fizz</span>
<span class="c1">/// if number divisible by 5 and not by 3 return buzz</span>
<span class="c1">/// if number divisible by 15 return fizzbuzz</span>
<span class="c1">/// </summary></span>
<span class="c1">/// <param name="number">The number.</param></span>
<span class="c1">/// <returns>fizz, buzz, or fizzbuzz</returns></span>
<span class="k">static</span> <span class="k">public</span> <span class="kt">string</span> <span class="nf">FizzBuzz</span><span class="p">(</span><span class="kt">int</span> <span class="n">number</span><span class="p">)</span>
<span class="p">{</span>
<span class="kt">string</span> <span class="n">returnString</span> <span class="p">=</span> <span class="kt">string</span><span class="p">.</span><span class="n">Empty</span><span class="p">;</span>
<span class="k">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">15</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"fizzbuzz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="nf">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">3</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"fizz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="nf">if</span> <span class="p">(</span><span class="n">number</span> <span class="p">%</span> <span class="m">5</span> <span class="p">==</span> <span class="m">0</span><span class="p">)</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="s">"buzz"</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span>
<span class="p">{</span>
<span class="n">returnString</span> <span class="p">=</span> <span class="n">number</span><span class="p">.</span><span class="n">ToString</span><span class="p">();</span>
<span class="p">}</span>
<span class="k">return</span> <span class="n">returnString</span><span class="p">;</span>
<span class="p">}</span>
</pre></div>
<p><img alt="output" src="http://www.emadmokhtar.com/images/fizzbuzzoutput.png"></p>
<p>This Coding Kate done, I've enjoyed it as taook me to collage day's when
having fun solving small problems, I hope you enjoyed it as well. See
you next Coding Kata.</p>
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"description": "I stared to practice recently after reading more about how practicing is important for programmer to become professional and one way of practicing is Coding Kata. I found a lot of problem to implement to practice and perform coding kata. This post I'll talk about Fizz Buzz Game a.k.a. Bizz Buzz Game, it's numerical/math game, if the number is divisible by 3 replace it with fizz, or if number divisible by 5 replace it with buzz, or if number is divisible by 3 and 5 replace it with fizzbuzz. For example if we count from 1 to 20 it'll be like this: 1, 2, fizz, 4, buzz, fizz, 7, 8, fizz, buzz, 11, fizz, 13, 14, fizzbuzz, 16, 17, fizz, 19, buzz. So how to code this game: First I thought I can solve this game by: If (this number is divisible by 3 and not divisible by 5) return fizz else if (this number is not divisible by 3 and divisible by 5) return buzz else if (this number is divisible by 3 and divisible by 5) return buzzfizz else if(this number is not divisible by 3 and not divisible by 5) return the number …"
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