I&#39;m not familiar with the GAE and if that interferes, but I don&#39;t have a problem running multiples. I often fire up a server and multiple clients from the same window.

A few pointers:

 * Go to the main method of each program to run them. Once you&#39;ve run them once, they show up in the drop menu on the run button.
 * Make multiple consoles and pin them. It makes it much easier to see your (debug/informational) outputs in real time.
 * Move the multiple consoles to separate views so you can see them at the same time.

Before on top, after on bottom
![enter image description here][1]

    
  [1]: http://i.stack.imgur.com/eqRRG.png


After adding the new Console view, you must go to the icon to its left and select which console you want to see. If you&#39;re running two programs you will see the two programs in the drop down list. 

Thanks for the answers. I was just trying it out and it was really helpful.

(By icon to the left I mean the one that looks like a mini purple color monitor)



@Corsika answer explains how to run on Eclipse

If you are comfortable running on two or more programs on the terminal
you can copy command line args from the debug view for different launch configurations and run on two or more terminals!!

To get the full command line, you can open the Debug view from Window&gt;Show View&gt;Other&gt;debug

Now after run&gt; Right click on the last launch(debug tab) and go to properties. Eclipse will list the exact command line.

This is my code :

    a = {0:&#39;000000&#39;,1:&#39;11111&#39;,3:&#39;333333&#39;,4:&#39;444444&#39;}
    
    for i in a:
        print i


it shows:

    0
    1
    3
    4

but I want it to show:

    4
    3
    1
    0


so, what can I do?


How to reverse order of keys in python dict?

I have a java project written using eclipse ide and I want to run it through ssh on a different machine, but I have to do this using the command line and I don&#39;t know exactly how.

I am a beginner at both shell commands and java.

Could you please give me a useful link with answers regarding this question, or perhaps a set instructions of how to do this?

Java - Build and run eclipse project from command line

I am building a Java Google App Engine server project and a Java desktop client. I would like to run them both at once, but I&#39;m not sure if this is possible using Eclipse/GAE plugin. Is there some way? I&#39;d like to be able to step through them both at the same time.

I tried opening a new instance of Eclipse, but it complained that the workspace is already in use, both projects are in the same workspace. (Perhaps I could just move them to different workspaces.)

Run two Java programs from Eclipse at once?

<p>I am building a Java Google App Engine server project and a Java desktop client. I would like to run them both at once, but I'm not sure if this is possible using Eclipse/GAE plugin. Is there some way? I'd like to be able to step through them both at the same time.</p>
<p>I tried opening a new instance of Eclipse, but it complained that the workspace is already in use, both projects are in the same workspace. (Perhaps I could just move them to different workspaces.)</p>


I&#39;m using Jackson JSON library to convert some JSON objects to POJO classes on an android application. The problem is, the JSON objects might change and have new fields added while the application is published, but currently it will break even when a simple String field is added, which can safely be ignored. 

Is there any way to tell Jackson to ignore newly added fields? (e.g. non-existing on the POJO objects)? A global ignore would be great.

Ignoring new fields on JSON objects using Jackson

I have a string like this: 

    mysz = &quot;name=john age=13 year=2001&quot;;

I want to remove the whitespaces in the string. I tried `trim()` but this removes only whitespaces before and after the whole string. I also tried `replaceAll(&quot;\\W&quot;, &quot;&quot;)` but then the `=` also gets removed.

How can I achieve a string with:

    mysz2 = &quot;name=johnage=13year=2001&quot;


Removing whitespace from strings in Java

What&#39;s the simplest way to get the String representation of a XML Document (`org.w3c.dom.Document`)? That is all nodes will be on a single line.

As an example, from

    &lt;root&gt;
      &lt;a&gt;trge&lt;/a&gt;
      &lt;b&gt;156&lt;/b&gt;
    &lt;/root&gt;

(this is only a tree representation, in my code it&#39;s a `org.w3c.dom.Document` object, so I can&#39;t treat it as a String)

to

    &quot;&lt;root&gt; &lt;a&gt;trge&lt;/a&gt; &lt;b&gt;156&lt;/b&gt; &lt;/root&gt;&quot;

Thanks!

XML Document to String

How can I use the below code to unmarshal a XML string an map it to the JAXB object below?


    JAXBContext jaxbContext = JAXBContext.newInstance(Person.class);
    Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
    Person person = (Person) unmarshaller.unmarshal(&quot;xml string here&quot;);


----------


    @XmlRootElement(name = &quot;Person&quot;)
    public class Person {
        @XmlElement(name = &quot;First-Name&quot;)
        String firstName;
        @XmlElement(name = &quot;Last-Name&quot;)
        String lastName;
        public String getFirstName() {
    		return firstName;
    	}
    	public void setFirstName(String firstName) {
    		this.firstName = firstName;
    	}
    	public String getLastName() {
    		return lastName;
    	}
    	public void setLastName(String lastName) {
    		this.lastName = lastName;
    	}
    }

Use JAXB to create Object from XML String

There is a generic method that takes a class as parameter and I have problems stubbing it with Mockito. The method looks like this:

    public &lt;U extends Enum&lt;U&gt; &amp; Error, T extends ServiceResponse&lt;U&gt;&gt; T validate(
        Object target, Validator validator, Class&lt;T&gt; responseClass,
        Class&lt;U&gt; errorEnum);

It&#39;s god awful, at least to me... I could imagine living without it, but the rest of the code base happily uses it...

I was going to, in my unit test, stub this method to return a new empty object. But how do I do this with mockito? I tried:

    when(serviceValidatorStub.validate(
        any(), 
        isA(UserCommentRequestValidator.class), 
        UserCommentResponse.class, 
        UserCommentError.class)
    ).thenReturn(new UserCommentResponse());

but since I am mixing and matching matchers and raw values, I get &quot;org.mockito.exceptions.misusing.InvalidUseOfMatchersException: Invalid use of argument matchers!&quot;

Stubbing a method that takes Class&lt;T&gt; as parameter with Mockito

I have a dynamic-web project set up on Eclipse and I&#39;m using Tomcat 7 as my web server.  It doesn&#39;t seem to be automatically putting 3rd party JARs I add to my library on my build path into the WEB-INF/lib folder.  Is there a way I can do this automatically?  Every time I search for an answer to this, I find something like &lt;a href=&quot;https://stackoverflow.com/questions/2890183/including-java-libraries-to-tomcat-inside-eclipse&quot;&gt;this&lt;/a&gt;.

So how do I do that automatically?  Is there a way to configure my build path to do this?

Adding 3rd party jars to WEB-INF/lib automatically using Eclipse/Tomcat

How to install Eclipse plugin from .zip? I have installed plugins by choosing the site and then check but never from .zip. Can anybody help?

How to install plugin for Eclipse from .zip

I&#39;m using Eclipse. Say I have a project &#39;ProjectA&#39; in the eclipseworkspace (in a folder ProjectA). I want to copy the project but with a new name (ProjectB) and have all the references in the new project adjusted. I can&#39;t find much help for what I thought would be a vary basic operation. I want to try out variations on the original design/code and creating a copy seemed the obvious way to go about it.

Any suggestions please.

Android - copy existing project with a new name in Eclipse

I am running Eclipse Galileo for developers.

When I run in debug mode, the current variables and their values are not coming up in the *Variables* window. The window remains empty when I step through my code after a breakpoint.

Last night it was working, so I&#39;m perplexed. Any reason why this might be happening and any tip on troubleshooting? 

Variables not showing while debugging in Eclipse

The standard way to profile an Android application in Eclipse is using the plugin DDMS and creating a trace file with all the information inside. If you want to view this information you can use &quot;traceview&quot;. I didn&#39;t like my first experience with this application because you can&#39;t filter the results. You have a lot of method calls for starting your application and you cannot filter only your code.

I have been looking for an alternative method. I found this tutorial [Using Eclipse* TPTP to Visualize Google* Android* Profiling Data][1] that explains how you can use the Eclipse Test &amp; Performance Tools Platform (TPTP) Profiling tool to visualize Android profiling data. Thanks to this previous post [Permission to write to the SD card][2] I managed to take my trace file from the Android Emulator into my file systems. The next step is converting this .trace file into a TPTP .trcxml file. I didn&#39;t find this converter they talk about.

Anyone knows where I can find this converter? Do you know another way to analyze this trace file with TPTP or with another more mature FREE profiler tool? Do you know another way to profile Android application? Thanks in advance


----------

**Edit 1**:

I found some interesting tool you can use to analyze Android apps memory usage. In order to get memory usage from Eclipse you have to &quot;Dump HPROF file&quot; from the DDMS prospective. Before doing that you have to choose in the DDMS preference panel, when it says &quot;HPROF Action&quot;, the &quot;Save to disk&quot; action. So from now on when you dump HPROF file you&#39;ll be asked where you want to save your .hprof file. You have to convert this file with the Android tool &quot;hprof-conv&quot; you can find in your Android SDK installation under the directory &quot;./tools&quot;. Finally now you can use the [Eclipse MAT][3] plugin to view the memory usage stats. I hope it will help someone else. If anyone knows something else about profiling Android apps it will appreciated. Thanks


  [1]: http://www.eclipse.org/tptp/home/documents/conferences/eclipseCon2009/383_AndroidTPTP.pdf
  [2]: https://stackoverflow.com/questions/2121833/permission-to-write-to-the-sd-card
  [3]: http://www.eclipse.org/mat/

Profiling Android apps with Eclipse plugin TPTP instead of traceview

I&#39;m writing a web application in Google app Engine. It allows people to basically edit html code that gets stored as an `.html` file in the blobstore.

I&#39;m using fetchData to return a `byte[]` of all the characters in the file. I&#39;m trying to print to an html &lt;textarea&gt; in order for the user to edit the html code. Everything works great!

Here&#39;s my only problem now:

The byte array is having some issues when converting back to a string. Smart quotes and a couple of characters are coming out looking funky. (?&#39;s or japanese symbols etc.) Specifically it&#39;s several bytes I&#39;m seeing that have negative values which are causing the problem.

The smart quotes are coming back as `-108` and `-109` in the byte array. Why is this and how can I decode the negative bytes to show the correct character encoding?

Converting byte array to String (Java)

I&#39;m starting new Google App Engine application and currently considering two frameworks: [Flask][1] and [webapp2][2]. I&#39;m rather satisfied with built-in webapp framework that I&#39;ve used for my previous App Engine application, so I think webapp2 will be even better and I won&#39;t have any problems with it.

However, there are a lot of good reviews of Flask, I really like its approach and all the things that I&#39;ve read so far in the documentation and I want to try it out. But I&#39;m a bit concerned about limitations that I can face down the road with Flask.

So, the question is - *do you know any problems, performance issues, limitations (e.g. routing system, built-in authorization mechanism, etc.) that Flask could bring into Google App Engine application?* By &quot;problem&quot; I mean something that I can&#39;t work around in several lines of code (or any reasonable amount of code and efforts) or something that is completely impossible.

And as a follow-up question: are there any killer-features in Flask that you think can blow my mind and make me use it despite any problems that I can face?


  [1]: http://flask.pocoo.org/
  [2]: http://webapp-improved.appspot.com/

Flask vs webapp2 for Google App Engine

If I access my web site via http://localhost:8080 from the same Win 7 PC, where server is running, then it works well.

If I try to access that from another PC (with usage of my internal PC&#39;s ip http://192.168.1.98:8080), then it doesn&#39;t work. Moreover, it is not accessible with this ip even on the same machine. What am I doing wrong?

(I&#39;ve tried to disable firewall on my Win 7 PC - it didn&#39;t help)

Is there any way to access GAE dev app server in the local network?

Will google Go use less resources than Python and Java on Appengine? Are the instance startup times for go faster than Java&#39;s and Python&#39;s startup times? 

Is the go program uploaded as binaries or source code and if it is uploaded as source code is it then compiled once or at each instance startup?

In other words: Will I benefit from using Go in app engine from a cost perspective? (only taking to account the cost of the appengine resources not development time)

Resource usage of google Go vs Python and Java on Appengine

I am uploading a file to S3 using Java - this is what I got so far:

    AmazonS3 s3 = new AmazonS3Client(new BasicAWSCredentials(&quot;XX&quot;,&quot;YY&quot;));
    						
    List&lt;Bucket&gt; buckets = s3.listBuckets();
    						
    s3.putObject(new PutObjectRequest(buckets.get(0).getName(), fileName, stream, new ObjectMetadata()));

The file is being uploaded but a WARNING is raised when I am not setting the content length:

&gt;     com.amazonaws.services.s3.AmazonS3Client putObject: No content length specified for stream &gt; data.  Stream contents will be buffered in memory and could result in out of memory errors.

This is a file I am uploading and the `stream` variable is an `InputStream`, from which I can get the byte array like this: `IOUtils.toByteArray(stream)`.

So when I try to set the content length and MD5 (taken from [here][1]) like this:

    // get MD5 base64 hash
    MessageDigest messageDigest = MessageDigest.getInstance(&quot;MD5&quot;);
    messageDigest.reset();
    messageDigest.update(IOUtils.toByteArray(stream));
    byte[] resultByte = messageDigest.digest();
    String hashtext = new String(Hex.encodeHex(resultByte));

    ObjectMetadata meta = new ObjectMetadata();
    meta.setContentLength(IOUtils.toByteArray(stream).length);
    meta.setContentMD5(hashtext);

**It causes the following error to come back from S3:**

&gt; The Content-MD5 you specified was invalid.

What am I doing wrong?

Any help appreciated!

**P.S.** I am on Google App Engine - I cannot write the file to disk or [create a temp file][2] because AppEngine does not support FileOutputStream.


  [1]: https://stackoverflow.com/questions/415953/generate-md5-hash-in-java
  [2]: http://www.java2s.com/Code/JavaAPI/java.io/FilecreateTempFileStringprefixStringsuffix.htm

Content Type	Original Author	Original Content on Stackoverflow
Question	Nick Heiner	View Question on Stackoverflow
Solution 1 - Java	corsiKa	View Answer on Stackoverflow
Solution 2 - Java	Sruthi Nair	View Answer on Stackoverflow
Solution 3 - Java	naren	View Answer on Stackoverflow

Run two Java programs from Eclipse at once?

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Solution 1 - Java

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Java - Build and run eclipse project from command line

How to reverse order of keys in python dict?

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