Try

    TableView tb = (TableView) scene.lookup(&quot;#history&quot;);

I want to save a stacked area plot (Plot example with code can be found [here][1]) made with **ggplot2** as **SVG**. Tried it with the **Cairo package** but the outcome is bad.

    library(ggplot2)
    library(grid)
    library(Cairo)
    ...
        
    #png(output_file, width=800, height=400)
    Cairo(800,400,file=paste(output_file, &quot;.svg&quot;, sep=&quot;&quot;),type=&quot;svg&quot;,bg=&quot;transparent&quot;,pointsize=8, units=&quot;px&quot;,dpi=400)
    
    gt &lt;- ggplot_gtable(ggplot_build(p))
    gt$layout$clip[gt$layout$name==&quot;panel&quot;] &lt;- &quot;off&quot;
    grid.draw(gt)
        
    dev.off()


  [1]: https://stackoverflow.com/questions/12196529/how-to-name-sections-on-x-axis-that-are-seperated-by-vertical-lines-in-an-r-plot

How to save a plot made with ggplot2 as SVG

I did a `bundle show` and get the complete path to a gem directory.

Unfortunately, I removed the directory using `rm -r gem_path`. Then my rails app isn&#39;t working anymore. If I try start server or start rails console it outputs the following error:

&gt; `&lt;class:Application&gt;`: uninitialized constant `MyAPP::Application::Gem` (NameError)

**What should I do to have it back?**

I tried `bundle install` or `bundle update` in hope of forcing the bundle to search the gem and install it back, but didn&#39;t work.

I also tried delete the `Gemfile.lock` and run `bundle install`. Nothing changed, same error.

The gem in question is [**Act as taggable on**][1].


[1]: http://rubygems.org/gems/acts-as-taggable-on

How to reinstall a gem using bundler

I have an element with the ID `history` type of `TableView`. How can I find and access this object if I have the instance  of `Scene scene`?

How to find an element with an ID in JavaFX?

<p>I have an element with the ID <code>history</code> type of <code>TableView</code>. How can I find and access this object if I have the instance  of <code>Scene scene</code>?</p>


What is the difference between [x86 and x64 binaries here][1], we would like to download binaries for Windows 7, Ubuntu 12.04 (32 bit options)

[1]:http://www.oracle.com/technetwork/java/javase/downloads/java-se-jdk-7-download-432154.html

What is the difference between x86 and x64

I have a `List&lt;Thing&gt;` and I would like to pass it to a method declared `doIt(final Thing... things)`.  Is there a way to do that?

The code looks *something* like this:

    public doIt(final Thing... things)
    {
        // things get done here
    }

    List&lt;Thing&gt; things = /* initialized with all my things */;

    doIt(things);

That code obviously doesn&#39;t work because `doIt()` takes `Thing` not `List&lt;Thing&gt;`. 

Is there a way to pass in a List as the varargs?

**This is in an Android App, but I don&#39;t see why the solution will not apply to anything Java**

Passing a List in as varargs

Consider:

    int[][] multD = new int[5][];
    multD[0] = new int[10];

Is this how you create a two-dimensional array with 5 rows and 10 columns?

I saw this code online, but the syntax didn&#39;t make sense.


Syntax for creating a two-dimensional array in Java

I&#39;ve just started to develop REST services, but I&#39;ve come across a difficult situation: sending files from my REST service to my client. So far I&#39;ve gotten the hang of how to send simple data types (strings, integers, etc) but sending a file is a different matter since there are so many file formats that I don&#39;t know where I should even begin. My REST service is made on Java and I&#39;m using Jersey, I&#39;m sending all the data using the JSON format.

I&#39;ve read about base64 encoding, some people say it&#39;s a good technique, others say it isn&#39;t because of file size issues. What is the correct way? This is how a simple resource class in my project is looking:

    import java.sql.SQLException;
    import java.util.List;
    
    import javax.ws.rs.GET;
    import javax.ws.rs.Path;
    import javax.ws.rs.Produces;
    import javax.ws.rs.core.Context;
    import javax.ws.rs.core.MediaType;
    import javax.ws.rs.core.Request;
    import javax.ws.rs.core.UriInfo;
    
    import com.mx.ipn.escom.testerRest.dao.TemaDao;
    import com.mx.ipn.escom.testerRest.modelo.Tema;
    
    @Path(&quot;/temas&quot;)
    public class TemaResource {
    		
    	@GET
    	@Produces({MediaType.APPLICATION_JSON})
    	public List&lt;Tema&gt; getTemas() throws SQLException{
    
    		TemaDao temaDao = new TemaDao();		
    		List&lt;Tema&gt; temas=temaDao.getTemas();
    		temaDao.terminarSesion();
    		
    		return temas;
    	}
    }

I&#39;m guessing the code for sending a file would be something like:

    import java.sql.SQLException;
    
    import javax.ws.rs.GET;
    import javax.ws.rs.Path;
    import javax.ws.rs.Produces;
    
    @Path(&quot;/resourceFiles&quot;)
    public class FileResource {
    		
    	@GET
    	@Produces({application/x-octet-stream})
    	public File getFiles() throws SQLException{ //I&#39;m not really sure what kind of data type I should return
    
    		// Code for encoding the file or just send it in a data stream, I really don&#39;t know what should be done here
    		
    		return file;
    	}
    }

What kind of annotations should I use? I&#39;ve seen some people recommend for a `@GET` using `@Produces({application/x-octet-stream})`, is that the correct way? The files I&#39;m sending are specific ones so the client doesn&#39;t need to browse through the files. Can anyone guide me into how am I supposed to send the file? Should I encode it using base64 to send it as a JSON object? or the encoding isn&#39;t necessary to send it as a JSON object? Thanks for any help you may give.

what&#39;s the correct way to send a file from REST web service to client?

I have a string that is built out of three parts. The word I want the string to be (changes), a seperating part (doesn&#39;t change) and the last part which changes. I want to delete the seperating part and the ending part. The seperating part is &quot; - &quot; so what I&#39;m wondering is if theres a way to delete everything after a certaint part of the string.

An example of this scenario would be if I wanted to turn this: &quot;Stack Overflow - A place to ask stuff&quot; into this: &quot;Stack Overflow&quot;. Any help is appreciated!

Delete everything after part of a string

I want to handle stage events (i.e. hiding) from my controller class. So all I have to do is to add a listener like this:

    ((Stage) myPane.getScene().getWindow()).setOn*whatIwant*(...);

But the problem is that initialization starts right after this code:

    Parent root = FXMLLoader.load(getClass().getResource(&quot;MyGui.fxml&quot;));

And before this code:

    Scene scene = new Scene(root);
    stage.setScene(scene);

Thus `getScene` returns null.

The only workaround I found by myself is to add a listener to `myPane.sceneProperty`, and when it becomes not null I get scene, add to it&#39;s `windowProperty` my listener handling which I finally retrieve stage. And it all ends with setting desired listeners to stage events.

I think there are too many listeners.

Is it the only way to solve my problem?

How to get stage from controller during initialization?

![enter image description here][1]


  [1]: http://i.stack.imgur.com/oDcHM.jpg

As you can see on the picture the text alignment for each colum is set to left alignment. Is there any way to change this? So far I&#39;ve tried within my CSS file:

&lt;!-- language: css --&gt;

    #Cols{
    	text-align: right;
    }

I have also tried:

    #Cols{
    	-fx-text-alignment: right;
    }

Does anyone know how I can change the alignment to right?

JavaFX TableView text alignment

I need to close the current fxml window by code in the controller

&gt; I know stage.close() or stage.hide() do this in fx

how to implement this in fxml? I tried
    
    private void on_btnClose_clicked(ActionEvent actionEvent) {
            Parent root = FXMLLoader.load(getClass().getResource(&quot;currentWindow.fxml&quot;));    
            Scene scene = new Scene(root);
            
            Stage stage = new Stage();            
            stage.setScene(scene);
            stage.show();
    }

but it doesn&#39;t work!

All help will be greatly appreciated. Thanks!

close fxml window by code, javafx

I have been doing some research on this but I am still VERY confused to say the least.

Can anyone give me a concrete example of when to use `Task` and when to use `Platform.runLater(Runnable);`? What exactly is the difference? Is there a golden rule to when to use any of these?

Also correct me if I&#39;m wrong but aren&#39;t these two &quot;Objects&quot; a way of creating another thread inside the main thread in a GUI (used for updating the GUI)?

Platform.runLater and Task in JavaFX

How can I pass parameters to a secondary window in javafx? Is there a way to communicate with the corresponding controller?

For example:
The user chooses a customer from a `TableView` and a new window is opened, showing the customer&#39;s info.

	Stage newStage = new Stage();
	try 
	{
	    AnchorPane page = (AnchorPane) FXMLLoader.load(HectorGestion.class.getResource(fxmlResource));
	    Scene scene = new Scene(page);
	    newStage.setScene(scene);
	    newStage.setTitle(windowTitle);
	    newStage.setResizable(isResizable);
	    if(showRightAway) 
	    {
	        newStage.show();
	    }
	}

`newStage` would be the new window. The problem is, I can&#39;t find a way to tell the controller where to look for the customer&#39;s info (by passing the id as parameter).

Any ideas?

Content Type	Original Author	Original Content on Stackoverflow
Question	Tower	View Question on Stackoverflow
Solution 1 - Java	Uluk Biy	View Answer on Stackoverflow

How to find an element with an ID in JavaFX?

Java Problem Overview

Java Solutions

Solution 1 - Java

How to reinstall a gem using bundler

How to save a plot made with ggplot2 as SVG

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