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Java: Detect duplicates in ArrayList?
...lt; list.size()){
/* There are duplicates */
}
Update: If I'm understanding your question correctly, you have a 2d array of Block, as in
Block table[][];
and you want to detect if any row of them has duplicates?
In that case, I could do the following, assuming that Block implements "equals"...
Map.clear() vs new Map : Which one will be better? [duplicate]
...h is backed with new array. So, garbage collector should clear all the key and values from the previous map, and clear the reference to itself. So O(n) algorithm is executed anyway, but in the garbage collector thread. For 1000 records you won't see any difference.
BUT. The performance guide tells ...
How can I debug my JavaScript code? [closed]
...
I like firebug, but I wouldn't claim it to be head and shoulders above webkit's inspector.
– Ryan Florence
Jun 12 '09 at 19:00
2
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Count all occurrences of a string in lots of files with grep
... doesn't work if you want to search in subdirectories too, whereas grep -o and wc -l does. cat is quicker in cases like the original question though.
– Leagsaidh Gordon
Jan 3 '13 at 15:37
...
Cooler ASCII Spinners? [closed]
...
Lots of choices with Unicode, including ⌚ and ⌛!
← ↖ ↑ ↗ → ↘ ↓ ↙
▁ ▂ ▃ ▄ ▅ ▆ ▇ █ ▇ ▆ ▅ ▄ ▃ ▁
▉▊▋▌▍▎▏▎▍▌▋▊▉
▖ ▘ ▝ ▗
┤ ┘ ┴ └ ├ ┌ ┬ ┐
◢ ◣ ◤ ◥
◰ ◳ ◲ ◱
◴ ...
How to sign an android apk file
... get stuck with after you work through it, I'd suggest:
https://developer.android.com/studio/publish/app-signing.html
Okay, a small overview without reference or eclipse around, so leave some space for errors, but it works like this
Open your project in eclipse
Press right-mouse - > tools (an...
Function Pointers in Java
This may be something common and trivial, but I seem to be having trouble finding a concrete answer. In C# there is a concept of delegates, which relates strongly to the idea of function pointers from C++. Is there a similar functionality in Java? Given that pointers are somewhat absent, what is the...
In Windows Azure: What are web role, worker role and VM role?
...
EDIT 3/3/2013 - updated to reference UDP endpoints, Virtual Machines, and more languages
EDIT 6/6/2013 - updated to reflect the discontinuation of VM Role, and update to web/worker role baseline OS images to Windows Server 2012
Good link by @Vladimir. A bit more clarification: All roles (web,...
Octave-Gnuplot-AquaTerm error: set terminal aqua enhanced title “Figure 1”…unknown terminal type"
I've installed Octave and gnuplot via Homebrew, and downloaded AquaTerm.dmg.
When I try to plot, I get the following message:
...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
苹果全球开发者大会：无硬件 iOS 9等三大系统更新新浪手机讯 6月9日凌晨消息，2015年苹果全球开发者大会(WWDC 2015)在美国旧金山正式开幕，本届主题为the epicenter of change(变革的 新浪手机讯 6月9日凌晨消息，2015年苹果全球开发...