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?)
C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games and is considered a programming foundation in the process of ...
What is C? C is a general-purpose programming language created by Dennis Ritchie at the Bell Laboratories in 1972. It is a very popular language, despite being old. C is strongly associated with UNIX, as it was developed to write the UNIX operating system.
Compared to other languages—like Java, PHP, or C#—C is a relatively simple language to learn for anyone just starting to learn computer programming because of its limited number of keywords.
In the real sense it has no meaning or full form. It was developed by Dennis Ritchie and Ken Thompson at AT&T bell Lab. First, they used to call it as B language then later they made some improvement into it and renamed it as C and its superscript as C++ which was invented by Dr.
Java equivalent:
String foo = "hi :)" if (foo instanceof String)
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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