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How to print matched regex pattern using awk?
Using awk , I need to find a word in a file that matches a regex pattern.
8 Answers
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Resetting remote to a certain commit
I want to discard all changes done after commit <commit-hash> .
So I did:
9 Answers
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What is an initialization block?
We can put code in a constructor or a method or an initialization block. What is the use of initialization block? Is it necessary that every java program must have it?
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ImportError: DLL load failed: %1 is not a valid Win32 application. But the DLL's are there
I have a situation very much like the one at ImportError: DLL load failed: %1 is not a valid Win32 application , but the answer there isn't working for me.
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Most efficient way to store thousand telephone numbers
This is a google interview question:
13 Answers
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How to branch with TortoiseHG
I downloaded TortoiseHg 1.0 for evaluation. For the life of me I can't figure out how to make a branch. It seems to understand branches (e.g. in its repository browser) but I just can't seem to find a way to make a branch. This seems like such a fundamental capability since out of the often toute...
Java enum - why use toString instead of name
If you look in the enum api at the method name() it says that:
7 Answers
7
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Implicit type conversion rules in C++ operators
I want to be better about knowing when I should cast. What are the implicit type conversion rules in C++ when adding, multiplying, etc. For example,
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When to use a “has_many :through” relation in Rails?
I am trying to understand what has_many :through is and when to use it (and how). However, I am not getting it. I am reading Beginning Rails 3 and I tried Googling, but I am not able to understand.
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C++ valarray vs. vector
I like vectors a lot. They're nifty and fast. But I know this thing called a valarray exists. Why would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful?
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