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Which is more efficient, a for-each loop, or an iterator?
...read all of the values, then there is no difference between using an iterator or the new for loop syntax, as the new syntax just uses the iterator underwater.
If however, you mean by loop the old "c-style" loop:
for(int i=0; i<list.size(); i++) {
Object o = list.get(i);
}
Then the new for ...
What does the CSS rule “clear: both” do?
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I won't be explaining how the floats work here (in detail), as this question generally focuses on Why use clear: both; OR what does clear: both; exactly do...
I'll keep this answer simple, and to the point, and will explain to you graphically why clear: both; is...
How do I check if a number is positive or negative in C#?
How do I check if a number is positive or negative in C#?
17 Answers
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解决：apache2.service: Failed to run \'start\' task: No such file or d...
解决：apache2.service: Failed to run 'start' task: No such file or directoryapache2-service-failed-to-run-start-task-no-such-file-or-directory今天重启apache2时，出现一个错误：apache2 service: Failed to run & 39;start& 39; task: No such file or directory。原因是：& 39; var tmp& 3...
Python-equivalent of short-form “if” in C++ [duplicate]
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This ternary operator was introduced in Python 2.5.
– Dave Webb
Nov 6 '09 at 9:19
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how to use #ifdef with an OR condition?
Sorry for asking very basic question. I would like to set OR condition in #ifdef directive.?
How to do that ?
I tried
2 Ans...
How to get a list of all valid IP addresses in a local network? [closed]
Is there a way to get a list of all valid IP addresses in a local network?
3 Answers
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Only mkdir if it does not exist [duplicate]
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Do a test
[[ -d dir ]] || mkdir dir
Or use -p option:
mkdir -p dir
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Should I be using Protractor or Karma for my end-to-end testing? [closed]
Should I be using Protractor or Karma for my end-to-end testing?
1 Answer
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error: ‘uint16_t’ does not name a type - C/C++ - 清泛网 - 专注C/C++及内核技术
error: ‘uint16_t’ does not name a type#include <stdint.h> 解决。 ** * @file stdint.h * Copyright 2012, 2013 MinGW.org project * * Permission is hereby ...#include <stdint.h> 解决。
/**
* @file stdint.h
* Copyright 2012, 2013 MinGW.org project
*
* Permission is hereby granted, ...