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Installing R with Homebrew
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106
As of 2017 / Brew 1.3.2 @ macOS Sierra 10.12.6 all you have to do is:
$ brew install r
You ...
How to save a BufferedImage as a File
...ds return an array of strings listing all of the formats supported in this JRE.
String writerNames[] = ImageIO.getWriterFormatNames();
The returned array of names will include any additional plug-ins that are installed and any of these names may be used as a format name to select an image writer.
F...
Is it better to reuse a StringBuilder in a loop?
...eMillis()-time );
}
}
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Note that this is with JRE 1.6.0_07.
Based on Jon Skeet's ideas in the edit, here's version 2. Same results though.
public class ScratchPad {
static String a;
public static void main( String[] args ) throws Exception {
long ti...
Android app in Eclipse: Edit text not showing on Graphical layout
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106
From the Eclipse IDE, just change the API version to use for previewing, as shown in below scr...
How can I restart a Java application?
... used to launch your application. (The value returned may not point to the JRE used to launch the application or it could have been overridden by -Djava.home.)
You would presumably want to honor the original memory settings etc (-Xmx, -Xms, …) so you need to figure out which settings where used t...
How to kill an Android activity when leaving it so that it cannot be accessed from the back button?
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Setting android:noHistory="true" on the activity in your manifest will remove an activity from...
How to delete a file after checking whether it exists
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106
Use System.IO.File.Delete like so:
System.IO.File.Delete(@"C:\test.txt")
From the documentat...
Should I instantiate instance variables on declaration or in the constructor?
...m). Personal taste is personal taste; ultimately, neither the CPU nor the JRE care about syntactical style.
– Aquarelle
Sep 20 '13 at 22:38
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how to check and set max_allowed_packet mysql variable [duplicate]
... edited Jun 3 '16 at 5:47
lhrec_106
62055 silver badges1515 bronze badges
answered Apr 16 '11 at 18:08
glebtvg...
How to write a Unit Test?
...J IDEA community 2020.1 for the screenshots. Also, you need to set up your jre before these steps. I am using JDK 11.0.4.
1- Right-click on the main folder of your project-> new -> directory. You should call this 'test'.
2- Right-click on the test folder and create the proper package. I sugg...