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Why is Go so slow (compared to Java)?
...gccgo isn't feature-complete yet.
Benchmark figures are almost entirely about quality of implementation. They don't have a huge amount to do with the language as such, except to the extent that the implementation spends runtime supporting language features that the benchmark doesn't really need. In...
Do I need to close() both FileReader and BufferedReader?
...'s cleaner just to close the underlying stream, although you need to watch out for decorators with other resources and buffering.
– Tom Hawtin - tackline
Sep 7 '09 at 14:55
9
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Why use getters and setters/accessors?
...e public interface to remain constant while the implementation changes without affecting existing consumers.
Controlling the lifetime and memory management (disposal) semantics of the property - particularly important in non-managed memory environments (like C++ or Objective-C).
Providing a debuggin...
UITableView backgroundColor always gray on iPad
...tell me what is this issue actually. Why when we run the app, it is greyed out?
– Naveen
May 16 '11 at 11:43
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How can I avoid Java code in JSP files, using JSP 2?
... so that you end up with just a JSP/Facelets page and a JavaBean class without the need for a custom servlet.
If you want to invoke some Java code to control the flow inside a JSP page, then you need to grab an (existing) flow control taglib like JSTL core. E.g. displaying List<Product> in a...
Drop columns whose name contains a specific string from pandas DataFrame
...
You can filter out the columns you DO want using 'filter'
import pandas as pd
import numpy as np
data2 = [{'test2': 1, 'result1': 2}, {'test': 5, 'result34': 10, 'c': 20}]
df = pd.DataFrame(data2)
df
c result1 result34 tes...
Can't resize UIView in IB
...ow the screenshot below:
Under 'File Inspector' -> untick Use Auto Layout
Click on Attributes Selector & Choose Freeform for Size
This is needed when creating a headerView for a tableView
share
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SQL Server SELECT INTO @variable?
... @webturner Neither of those points are true. Temp tables aren't scoped outside of the proc and table variables aren't any more "memory only" than temp tables.
– Martin Smith
Apr 14 '14 at 23:45
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A beginner's guide to SQL database design [closed]
...
I started out with this article
http://en.tekstenuitleg.net/articles/software/database-design-tutorial/intro.html
It's pretty concise compared to reading an entire book and it explains the basics of database design (normalization, ty...
Get battery level and state in Android
...c void onCreate(Bundle b) {
super.onCreate(b);
setContentView(R.layout.main);
batteryTxt = (TextView) this.findViewById(R.id.batteryTxt);
this.registerReceiver(this.mBatInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
}
}
...