You do need to close the input Stream, because the stream returned by the method you mention is actually [FileInputStream][1] or some other subclass of `InputStream` that holds a handle for a file. If you do not close this stream you have resource leakage.


  [1]: http://docs.oracle.com/javase/1.4.2/docs/api/java/io/FileInputStream.html

No, it does not mean that - because `InputStream` is an abstract class, and `getResourceAsStream()` returns a concrete subclass whose `close()` method does something - most importantly free a file handle.

I&#39;m using Codeigniter, and instead of error messages I&#39;m just getting a blank page. Is there any way to show PHP error messages instead? It&#39;s very hard to debug when I get no feedback.

My environment is Ubuntu with Apache. 

Codeigniter displays a blank page instead of error messages

This is when using XDocument from .net.

I thought this might work...

    xElement.Element(elementName).Value = new XCData(value).ToString();

... but it comes out like this...

    &lt;name&gt;&amp;lt;![CDATA[hello world]]&amp;gt;&lt;/name&gt;

How do I make the value of an XElement be wrapped in ![CDATA[***]]?

My code is:

    InputStream confFile=classLoader.getResourceAsStream(&quot;myconffile.properties&quot;);

In docs:

&gt;The close method of InputStream does nothing. 

Does it mean that I don&#39;t need close InputStream?

Do I need to close an InputStream in Java?

My code is:
<pre><code class="hljs language-ini">InputStream confFile=classLoader.getResourceAsStream("myconffile.properties");
</code></pre>
In docs:
>The close method of InputStream does nothing.
Does it mean that I don't need close InputStream?

I&#39;m developing an application which displays images, and plays sounds from a database. I&#39;m trying to decide whether or not to use a separate JFrame to add images to the database from the GUI. 

I&#39;m just wondering whether it is good practice to use multiple JFrame windows?

The Use of Multiple JFrames: Good or Bad Practice?

I know that `print(e)` (where e is an Exception) prints the occurred exception
but, I was trying to find the python equivalent of Java&#39;s `e.printStackTrace()` that exactly traces the exception to what line it occurred and prints the entire trace of it.

Could anyone please tell me the equivalent of `e.printStackTrace()` in Python?

e.printStackTrace equivalent in python

I have the following code:


    class Hello {
        class Thing {
            public int size;
          
            Thing() {
                size = 0;
            }
        }
     
        public static void main(String[] args) {
            Thing thing1 = new Thing();
            System.out.println(&quot;Hello, World!&quot;);
        }
    }

I know `Thing` does nothing, but my Hello, World program compiles just fine without it. It&#39;s only my defined classes that are failing on me.

And it refuses to compile. I get `No enclosing instance of type Hello is accessible.&quot;` at the line that creates a new Thing. I&#39;m guessing either:

 1. I have system level problems (either in DrJava or my Java install) or
 2. I have some basic misunderstanding of how to construct a working program in java.

Any ideas?

What causes error &quot;No enclosing instance of type Foo is accessible&quot; and how do I fix it?

I&#39;ve recently read about this and seen people using this class, but in pretty much all cases, using `null` would&#39;ve worked as well - if not more intuitively. Can someone provide a concrete example where `Optional` would achieve something that `null` couldn&#39;t or in a much cleaner way? The only thing I can think of is to use it with `Maps` that don&#39;t accept `null` keys, but even that could be done with a side &quot;mapping&quot; of null&#39;s value. Can anyone provide me with a more convincing argument?

What&#39;s the point of Guava&#39;s Optional class

I pushed a magic button and now my cursor (the blinking thing that shows where you type) split itself and now Eclipse is acting like a plain text editor/like Microsoft Word. The cursor, which usually looks like &quot;|&quot;, now looks like &quot;&#166;&quot; (what Wikipedia calls a &#39;[broken bar](https://en.wikipedia.org/wiki/Vertical_bar#Solid_vertical_bar_vs_broken_bar)&#39; or a &#39;parted rule&#39; rather than a normal &#39;[vertical bar](https://en.wikipedia.org/wiki/Vertical_bar)&#39;).

I just want to know how to get Eclipse to act normal again, and what I accidentally did so I don&#39;t do it again.

Eclipse text cursor has changed and editor behaves differently

&gt; **Possible Duplicate:**  
&gt; [Can we convert a byte array into an InputStream in Java?](https://stackoverflow.com/questions/1802123/can-we-convert-a-byte-array-into-an-inputstream-in-java)  

&lt;!-- End of automatically inserted text --&gt;

There is a way to convert an array of bytes (`byte[]`) to InputStream in Java? I looked at some methods in Apache Commons IO, but found nothing.

How to convert byte[] to InputStream?

I am using &lt;code&gt;HTTPURLConnection&lt;/code&gt; to connect to a web service. I know how to use &lt;code&gt;HTTPURLConnection&lt;/code&gt; but I want to understand how it works. Basically, I want to know the following:

 - On which point does &lt;code&gt;HTTPURLConnection&lt;/code&gt; try to establish a connection to the given URL?
 - On which point can I know that I was able to successfully establish a connection?
 - Are establishing a connection and sending the actual request done in one step/method call? What method is it?
 - Can you explain the function of &lt;code&gt;getOutputStream&lt;/code&gt; and &lt;code&gt;getInputStream&lt;/code&gt; in layman&#39;s term? I notice that when the server I&#39;m trying to connect to is down, I get an &lt;code&gt;Exception&lt;/code&gt; at &lt;code&gt;getOutputStream&lt;/code&gt;. Does it mean that &lt;code&gt;HTTPURLConnection&lt;/code&gt; will only start to establish a connection when I invoke &lt;code&gt;getOutputStream&lt;/code&gt;? How about the &lt;code&gt;getInputStream&lt;/code&gt;? Since I&#39;m only able to get the response at &lt;code&gt;getInputStream&lt;/code&gt;, then does it mean that I didn&#39;t send any request at &lt;code&gt;getOutputStream&lt;/code&gt; yet but simply establishes a connection? Do &lt;code&gt;HttpURLConnection&lt;/code&gt; go back to the server to request for response when I invoke &lt;code&gt;getInputStream&lt;/code&gt;?
 - Am I correct to say that &lt;code&gt;openConnection&lt;/code&gt; simply creates a new connection object but does not establish any connection yet?
 - How can I measure the read overhead and connect overhead?

Can you explain the HttpURLConnection connection process?

I want to read the text from a text file.  In the code below, an exception occurs (that means it goes to the `catch` block).  I put the text file in the application folder.  Where should I put this text file (mani.txt) in order to read it correctly?

        try
    	{
    		InputStream instream = openFileInput(&quot;E:\\test\\src\\com\\test\\mani.txt&quot;); 
    		if (instream != null)
    		{
    		    InputStreamReader inputreader = new InputStreamReader(instream); 
    		    BufferedReader buffreader = new BufferedReader(inputreader); 
    		    String line,line1 = &quot;&quot;;
    		    try
    		    {
    		    	while ((line = buffreader.readLine()) != null)
    		    		line1+=line;
    		    }catch (Exception e) 
    		    {
    		        e.printStackTrace();
    		    }
    		 }
    	}
    	catch (Exception e) 
    	{
    		String error=&quot;&quot;;
    		error=e.getMessage();
        }

How can I read a text file in Android?

I am using a library, [ya-csv](https://github.com/koles/ya-csv), that expects either a file or a stream as input, but I have a string.

How do I convert that string into a stream in Node?

How to create streams from string in Node.Js?

I&#39;m wondering if there is any ideomatic way to chain multiple InputStreams into one continual InputStream in Java (or Scala).

What I need it for is to parse flat files that I load over the network from an FTP-Server. What I want to do is to take file[1..N], open up streams and then combine them into one stream. So when file1 comes to an end, I want to start reading from file2 and so on, until I reach the end of fileN. 

I need to read these files in a specific order, data comes from a legacy system that produces files in barches so data in one depends on data in another file, but I would like to handle them as one continual stream to simplify my domain logic interface. 

I searched around and found PipedInputStream, but I&#39;m not positive that is what I need. An example would be helpful.

Content Type	Original Author	Original Content on Stackoverflow
Question	user710818	View Question on Stackoverflow
Solution 1 - Java	Boris Strandjev	View Answer on Stackoverflow
Solution 2 - Java	Michael Borgwardt	View Answer on Stackoverflow

Do I need to close an InputStream in Java?

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

How do I make the value of an XElement be wrapped in ![CDATA[***]]?

Codeigniter displays a blank page instead of error messages

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