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Simple 'if' or logic statement in Python [closed]
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If key isn't an int or float but a string, you need to convert it to an int first by doing
key = int(key)
or to a float by doing
key = float(key)
Otherwise, what you have in your question should work, but
if (key < 1) or (key > 34):...
Difference between “and” and && in Ruby?
What is the difference between the && and and operators in Ruby?
7 Answers
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static allocation in java - heap, stack and permanent generation
I have been lately reading a lot on memory allocation schemes in java, and there have been many doubts as I have been reading from various sources. I have collected my concepts, and I would request to go through all of the points and comment on them. I came to know that memory allocation is JVM spec...
Why doesn't java.util.Set have get(int index)?
...e please explain why the java.util.Set interface lacks get(int Index) , or any similar get() method?
18 Answers
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How does Java handle integer underflows and overflows and how would you check for it?
...back to the maximum value and continues from there.
You can check that beforehand as follows:
public static boolean willAdditionOverflow(int left, int right) {
if (right < 0 && right != Integer.MIN_VALUE) {
return willSubtractionOverflow(left, -right);
} else {
r...
Checking for empty arrays: count vs empty
...ould use count really - If the array is large then count takes longer/has more overhead. If you simply need to know whether or not the array is empty then use empty.
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Regular expression for floating point numbers
...h floating point numbers. I have written the following regular expression for it:
12 Answers
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What is Serialization?
I am getting started with Object-Oriented Programming (OOP) and would like to know: what is the meaning of serialization in OOP parlance?
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Encapsulation vs Abstraction?
...s away the implementation details related to its state.
Abstraction is a more generic term, it can also be achieved by (amongst others) subclassing. For example, the interface List in the standard library is an abstraction for a sequence of items, indexed by their position, concrete examples of a L...
Can JSON start with “[”?
From what I can read on json.org , all JSON strings should start with { (curly brace), and [ characters (square brackets) represent an array element in JSON.
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