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Why Java needs Serializable interface?
...anguage created in 70s) every object is serializable by default. I have no idea why this is not the case in Java, considering the fact that the vast majority of objects are safe to serialize and just a few of them aren't.
Marking an object as serializable (with an interface) doesn't magically make...
How to overload __init__ method based on argument type?
...ul:
Here's a sample (this is a read method and not a constructor, but the idea is the same):
def read(self, str=None, filename=None, addr=0):
""" Read binary data and return a store object. The data
store is also saved in the interal 'data' attribute.
The data can either be ta...
Resumable downloads when using PHP to send the file?
... header("HTTP/1.1 500 Internal Server Error");
}
// It's usually a good idea to explicitly exit after sending a file to avoid sending any
// extra data on the end that might corrupt the file
exit;
share
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How should I have explained the difference between an Interface and an Abstract class?
...document among various teams in software development.
Interfaces give the idea what is to be done but not how it will be done. So implementation completely depends on developer by following the given rules (means given signature of methods).
Abstract classes may contain abstract declarations, conc...
Accessing nested JavaScript objects and arays by string path
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@SC1000 good idea. This answer was written before default parameters were available in most browsers. I'll update it to "function resolve(path, obj=self)", since referencing the global object as a default is intentional.
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What to do about a 11000 lines C++ source file?
... @Martin: fortunately you haven't pasted your file here, so I have no idea about its structure. But general idea is to split it in logical parts. Such logical parts could contain groups of functions from your "main class" or you could split it in several auxiliary classes.
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IntelliJ does not show 'Class' when we right click and select 'New'
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Also, intellj-idea automatically recognize folder as source root when we have structure in such way: src/main/java
– zkvarz
Nov 2 '16 at 14:26
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What are the differences between Abstract Factory and Factory design patterns?
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Because nobody want to invest in ideas.
– jgauffin
Feb 28 '16 at 8:09
5
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Set every cell in matrix to 0 if that row or column contains a 0
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So my idea is to use the values in the last row/column as a flag to indicate whether all of the values in the corresponding column/row are 1s.
Using a Zig Zag scan through the entire matrix EXCEPT the final row/column. At each ele...
What is the difference between the kernel space and the user space?
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@roottraveller: I'm not sure what gave you that idea, but no, not at all. At the same time, a user-space process will normally have some (more or less hidden) kernel-space memory, so (for example) your process will have a user-space stack, and a kernel-space stack that's u...