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    <p><strong>Favor composition over inheritance.</strong></p> <p>Solution takes into consideration that there could be another type of word that may need WordLengthSupport. </p> <p>Similarly other interfaces could be created and implemented and various word types can have mix and match of those interfaces. </p> <p>.</p> <pre><code>public class WordLength { private int length = 0; public int getLength(){return length}; public void setLength(int length){this.length = length}; } </code></pre> <p>.</p> <pre><code>public interface WordLengthSupport { public WordLength getWordLength(); } </code></pre> <p>.</p> <pre><code>public class BetterWord extends AbstractWord implements WordLengthSupport { WordLength wordLength; public WordLength getWordLength() { if(wordLength==null) { // each time word changes // make sure to set wordLength to null calculateWordLength(); } return wordLength; } private void calculateWordLength() { // This method should be // called in constructor // or each time word changes int length = // based on the variable word calculate Length.. this.wordLength = new WordLength(); this.wordLength.setLength(length); } } </code></pre> <p>.</p> <pre><code>public class BetterWordDescriptor extends AbstractWord implements WordLengthSupport { WordLength wordLength; public WordLength getWordLength(return wordLength); public void setWordLength(WordLength wordLength) { // Use this to populate WordLength of respective word this.wordLength = wordLength; } } </code></pre> <p>.</p> <p><strong>The Strategy Pattern</strong> defines a family of algorithms, encapsulates each one, and makes them interchangeable. Strategy lets the algorithm vary independently from clients that use it.</p> <p>This solution does not use strategy pattern but can be refactored for same.</p>
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    1. USGladwin Burboz
    1. USGladwin Burboz
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    1. CO+1 Wow, that is an awesome solution, not super intuitive, but I think that should work quite cleanly.
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      1. USsixtyfootersdude
    2. COYour function, private WordLength calculateWordLength(), does not return a value and should be void.
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      1. USJoseph Gordon
    3. COThat is right crosvenir. I wrote this in notepad so no syntax checking. Thanks for pointing out, I will update it.
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      1. USGladwin Burboz
 

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