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C# "is" operator alternative in Java [duplicate]

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in C# when I want to know if an object is an instance of a particular type or not, I can use "is" operator:

String foo = "hi :)" if (foo is String) ... 

how can I do it in java? (I know I can use try statement, any other way?)

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user2136334 Avatar asked Aug 09 '13 12:08

user2136334


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2 Answers

Java equivalent:

String foo = "hi :)" if (foo instanceof String) 
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rocketboy Avatar answered Sep 21 '22 19:09

rocketboy


You'd use instanceof - that's the equivalent of is in C#. Note that there's no equivalent of as.

See the JLS section 15.20.2 for more details of instanceof, but it's basically the same as is:

// Note: no point in using instanceof if foo is declared to be String! Object foo = "hello"; if (foo instanceof String) {     ... } 
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Jon Skeet Avatar answered Sep 21 '22 19:09

Jon Skeet