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Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
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Does the Java &= operator apply & or &&?
Assuming
5 Answers
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Navigation in django
I've just done my first little webapp in django and I love it. I'm about to start on converting an old production PHP site into django and as part its template, there is a navigation bar.
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count the frequency that a value occurs in a dataframe column
I have a dataset
13 Answers
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Is JavaScript a pass-by-reference or pass-by-value language?
The primitive types (number, string, etc.) are passed by value, but objects are unknown, because they can be both passed-by-value (in case we consider that a variable holding an object is in fact a reference to the object) and passed-by-reference (when we consider that the variable to the object hol...
Class method differences in Python: bound, unbound and static
What is the difference between the following class methods?
13 Answers
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JavaScript function in href vs. onclick
I want to run a simple JavaScript function on a click without any redirection.
15 Answers
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What's the difference between the data structure Tree and Graph?
Academically speaking, what's the essential difference between the data structure Tree and Graph? And how about the tree based search and Graph based search?
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Why can't I define a static method in a Java interface?
EDIT: As of Java 8, static methods are now allowed in interfaces.
24 Answers
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Why doesn't java.util.Set have get(int index)?
I'm sure there's a good reason, but could someone please explain why the java.util.Set interface lacks get(int Index) , or any similar get() method?
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