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copied!<p>Of all recent Java release, Java 5 made the largest and most obvious changes to the language. <a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html" rel="nofollow noreferrer">The summary</a> lists all the new features. In brief:</p> <ul> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#boxing" rel="nofollow noreferrer">autoboxing</a></li> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#enums" rel="nofollow noreferrer">enum</a>, e.g., <code>enum Season { WINTER, SPRING, SUMMER, FALL }</code></li> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#generics" rel="nofollow noreferrer">Generics</a>, e.g., <code>Collection<String> coll;</code> instead of <code>Collection coll;</code></li> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#forloop" rel="nofollow noreferrer">ehanced for loop</a>, e.g., <code>for (String str : coll)</code></li> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#varargs" rel="nofollow noreferrer">varargs</a>, e.g., <code>private void function(Object... arguments);</code></li> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#static_import" rel="nofollow noreferrer">static import</a></li> <li><a href="http://java.sun.com/j2se/1.5.0/docs/relnotes/features.html#annotations" rel="nofollow noreferrer">Annotations</a>, e.g., <code>@Override</code> or <code>@Deprecated</code></li> <li><code>String.format</code> like a Java version of <code>printf()</code></li> </ul> <p>Java 4 introduced a few new features too, primarily <a href="http://java.sun.com/j2se/1.4.2/docs/guide/lang/assert.html" rel="nofollow noreferrer">assertions</a>.</p> <p>If you prefer books, you can learn about Java 5 changes from the book <a href="http://oreilly.com/catalog/9780596007386/" rel="nofollow noreferrer">Java 5.0 Tiger: A Developer's Notebook</a>. This isn't the most comprehensive book you'll find, but it's a nice and quick introduction to all of the new features of Java 5.</p>

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