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copied!<p>include following imports. </p> <pre><code>import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; </code></pre> <p>and</p> <p>change </p> <pre><code>ArrayList<String> words = Arrays.asList(list); </code></pre> <p>to</p> <pre><code>ArrayList<String> words =new ArrayList<String>(Arrays.asList(list)); </code></pre> <p>if you want to ignore case use like below.</p> <pre><code> Collections.sort(words,String.CASE_INSENSITIVE_ORDER); </code></pre> <p><strong>update</strong></p> <p>change your load_list() method like this.</p> <pre><code> public static String[] load_list( String filename ) throws IOException { File fileReader = new File( filename ); Scanner inputFile = new Scanner( fileReader ); List<String> L = new ArrayList<String>(); while ( inputFile.hasNextLine() ) { L.add(inputFile.nextLine()); } return L.toArray(new String[L.size()]); } </code></pre> <p>change your main() method like this.</p> <pre><code>public static void main(String[] args) throws IOException { String[] list = { "" }; list = load_list( "wordlist.txt" ); ArrayList<String> words = new ArrayList<String>(Arrays.asList(list)); Collections.sort(words,String.CASE_INSENSITIVE_ORDER); } </code></pre> <p>and include following imports</p> <pre><code>import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.List; import java.util.Scanner; </code></pre> <p>to print the ArrayList use like below</p> <pre><code>for(String s: list){ System.out.println(s); } </code></pre>

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