{"id":316724,"date":"2020-10-15T10:00:00","date_gmt":"2020-10-15T10:00:00","guid":{"rendered":"https:\/\/www.infoworld.com\/article\/3543252\/how-to-use-java-generics-to-avoid-classcastexceptions.html#tk.rss_java101"},"modified":"2020-10-15T10:00:00","modified_gmt":"2020-10-15T10:00:00","slug":"how-to-use-java-generics-to-avoid-classcastexceptions-2","status":"publish","type":"post","link":"https:\/\/itteacheritfreelance.hk\/wordpress\/index.php\/2020\/10\/15\/how-to-use-java-generics-to-avoid-classcastexceptions-2\/","title":{"rendered":"How to use Java generics to avoid ClassCastExceptions"},"content":{"rendered":"

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Java 5 brought generics to the Java language. In this article, I introduce you to generics and discuss generic types, generic methods, generics and type inference, generics controversy, and generics and heap pollution.<\/p>\n

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Get the code<\/a><\/div>\n
Download the source code for examples in this Java 101 tutorial. Created by Jeff Friesen for JavaWorld<\/a>.<\/span><\/div>\n<\/div>\n

What are generics?<\/h2>\n

Generics<\/em> are a collection of related language features that allow types or methods to operate on objects of various types while providing compile-time type safety. Generics features address the problem of java.lang.ClassCastException<\/code>s being thrown at runtime, which are the result of code that is not type safe (i.e., casting objects from their current types to incompatible types).<\/p>\n

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Java 5 brought generics to the Java language. In this article, I introduce you to generics and discuss generic types, generic methods, generics and type inference, generics controversy, and generics and heap pollution. download
\nGet the code
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