class Archives - Page 9 of 11

When should you use a class vs a struct in C++?

In what scenarios is it better to use a struct vs a class in C++? 27 s 27 The differences between a class ...

April 14, 2022
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What is the purpose of the word ‘self’?

What is the purpose of the self word in Python? I understand it refers to the specific object instance created from that class. ...

April 13, 2022
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Why do Python classes inherit object?

Why does the following class declaration inherit from object? class MyClass(object): ... 6 Is there any reason for a class declaration to inherit ...

April 12, 2022
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What does “Could not find or load main class” mean?

A common problem that new Java developers experience is that their programs fail to run with the error message: Could not find or ...

April 11, 2022
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When should I use ‘self’ over ‘$this’?

In PHP 5, what is the difference between using self and $this? When is each appropriate? 2 23 Short Use $this to refer ...

April 10, 2022
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How do I resolve ClassNotFoundException?

April 8, 2022
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Java: Multiple class declarations in one file

My suggested name for this technique (including multiple top-level classes in a single source file) would be “mess”. Seriously, I don’t think it’s ...

April 7, 2022
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what is the difference between `public class` and just `class`?

April 7, 2022
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How do you make a deep copy of an object?

A safe way is to serialize the object, then deserialize. This ensures everything is a brand new reference. Here’s an article about how to ...

April 7, 2022
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What does .class mean in Java?

When you write .class after a class name, it references the class literal – java.lang.Class object that represents information about given class. For example, if your class is Print, then Print.class is ...

April 7, 2022
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