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Why is super.super.method(); not allowed in Java?
... + ((I)this).x);
}
}
class Test {
public static void main(String[] args) {
new T3().test();
}
}
which produces the output:
x= 3
super.x= 2
((T2)this).x= 2
((T1)this).x= 1
((I)this).x= 0
(example from the JLS)
However, this do...
Clear terminal in Python [duplicate]
...afe from injections because there is no user input involved there. All the strings that could be passed to os.system are fixed.
– poke
Mar 26 '16 at 0:10
1
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Quora如何在快速开发中保持高品质代码 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...模块/目录等级的代码“ownership”上添加标签，例如：
__reviewer__ = 'vanessa, kornel'
如果提交新变更，系统就自动会分析文件（或其上层目录），将新审查者的名字添加到提交数据中。我们还有额外的规则将代码审核派发给合适的...
NoSQL - MongoDB vs CouchDB [closed]
...~2.5Gb
Text search integrated
GridFS to store big data + metadata (not actually an FS)
Data center aware
Best used: If you need dynamic queries. If you prefer to define indexes, not map/reduce functions. If you need good performance on a big DB. If you wanted CouchDB, but your data changes too muc...
Callback to a Fragment from a DialogFragment
...
return new AlertDialog.Builder(getActivity())
.setTitle(R.string.ERROR)
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(R.string.ok_button,
new DialogInterface.OnClickListener() {
public void onClick...
Fastest check if row exists in PostgreSQL
...f a single row from the batch exists in the table because then I know they all were inserted.
8 Answers
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How to remove the URL from the printing page?
...y print themselves, either).
To avoid "leaking" information via the query string, you could submit via POST
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How do I rename a column in a database table using SQL?
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Specifically for SQL Server, use sp_rename
USE AdventureWorks;
GO
EXEC sp_rename 'Sales.SalesTerritory.TerritoryID', 'TerrID', 'COLUMN';
GO
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How to pass the value of a variable to the stdin of a command?
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Herestrings <<< are not guaranteed to be available, they are not in POSIX base, as far as I know. They will work as expected, as long as your only running them in bash. I only mention it, because they OP said 'shell' n...
Is It Possible to NSLog C Structs (Like CGRect or CGPoint)?
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You can try this:
NSLog(@"%@", NSStringFromCGPoint(cgPoint));
There are a number of functions provided by UIKit that convert the various CG structs into NSStrings. The reason it doesn't work is because %@ signifies an object. A CGPoint is a C struct (and s...