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How to append text to an existing file in Java?
...catch(IOException ex){ ex.printStackTrace(); }
– php_coder_3809625
Aug 18 '16 at 12:12
...
How to check if a string contains a substring in Bash
...egex in a bash script, this worked perfectly!
– blast_hardcheese
Feb 14 '12 at 5:10
114
The =~ op...
How do I force Postgres to use a particular index?
...l time.
As a very blunt hammer, useful for testing, you can use the enable_seqscan and enable_indexscan parameters. See:
Examining index usage
enable_ parameters
These are not suitable for ongoing production use. If you have issues with query plan choice, you should see the documentation for tr...
Apache Spark: map vs mapPartitions?
...lize(List("dog", "salmon", "salmon", "rat", "elephant"), 3)
val b = a.map(_.length)
val c = a.zip(b)
c.collect
res0: Array[(String, Int)] = Array((dog,3), (salmon,6), (salmon,6), (rat,3), (elephant,8))
mapPartitions
This is a specialized map that is called only once for each partition.
...
Interfaces with static fields in java for sharing 'constants'
...s
{
private KittenConstants() {}
public static final String KITTEN_SOUND = "meow";
public static final double KITTEN_CUTENESS_FACTOR = 1;
}
share
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improve this answer
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...
Arduino控制RGB三色LED灯实验、程序代码、连线图、仿真 - 创客硬件开发 - ...
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原文链接：https://blog.csdn.net/m0_58857684/article/details/125702555
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...olorFilter
* @see http://groups.google.com/group/android-developers/browse_thread/thread/9e215c83c3819953
* @see http://gskinner.com/blog/archives/2007/12/colormatrix_cla.html
* @param value degrees to shift the hue.
* @return
*/
public static ColorFilter adjustHue( float value )
{
ColorMat...
How do I grant myself admin access to a local SQL Server instance?
...or instance be one of these:
C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Binn
C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Binn
Figure out your MSSQL directory and CD into it as such:
CD C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\...
Import regular CSS file in SCSS file?
...nt for one of those to be *.scss, right?
– underscore_d
Mar 4 '18 at 15:16
1
Starting in v3.5.3, ...
How to customize a Spinner in Android
...ter.createFromResource(this,
R.array.travelreasons, R.layout.simple_spinner_item);
adapter.setDropDownViewResource(R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
R.layout.simple_spinner_item
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
...