For enum variables, enter `switch (myEnumVar)` and press &lt;kbd&gt;Alt&lt;/kbd&gt;+&lt;kbd&gt;Enter&lt;/kbd&gt;. Smart completion will suggest: `Create missing &#39;switch&#39; branches`

[Crazy Coder][1] provided the following screenshot showing how to enable the **Create Enum Switch Branches** intention.

![Intention: Create Enum Switch Branches][2]

See [YouTrack issue 6374][3].


  [1]: https://stackoverflow.com/users/104891/crazycoder
  [2]: http://i.stack.imgur.com/z4r3Z.png
  [3]: http://youtrack.jetbrains.com/issue/IDEABKL-6374

Follow the steps here: https://confluence.jetbrains.com/display/PYH/Creating+and+applying+live+templates+(code+snippets)

for the context, use JAVA and the code for a switch - case Statement would be:

    switch($switchVar$) {
    case $value$:
        $END$
        break;
    default:
        break;
    }

Do the same for try - catch ;)

    try {
    $END$
    } catch(Exception e) {e.printStackTrace();}



I love the template function in intellij and use it a lot.

How can I read the contents on the PUT request in MVC webApi controller action.

    [HttpPut]
    public HttpResponseMessage Put(int accountId, Contact contact)
    {
        var httpContent = Request.Content;
        var asyncContent = httpContent.ReadAsStringAsync().Result;
    ...

 I get empty string here :(

What I need to do is: figure out &quot;what properties&quot; were modified/sent in the initial request (meaning that if the `Contact` object has 10 properties, and I want to update only 2 of them, I send and object with only two properties, something like this:

    {
       
        &quot;FirstName&quot;: null,
        &quot;LastName&quot;: null,
        &quot;id&quot;: 21
    }

The expected end result is 

    List&lt;string&gt; modified_properties = {&quot;FirstName&quot;, &quot;LastName&quot;}

Read HttpContent in WebApi controller

&gt; **Possible Duplicate:**  
&gt; [Why can&amp;#39;t I return a double from two ints being divided](https://stackoverflow.com/questions/7571326/why-cant-i-return-a-double-from-two-ints-being-divided)  

&lt;!-- End of automatically inserted text --&gt;

My C++ program is truncating the output of my integer devision even when I try and place the output into a float. How can I prevent this whilst keeping those to variables (a &amp; b) as integers?

    user@box:~/c/precision$ cat precision.cpp
    #include &lt;iostream&gt;
    #include &lt;iomanip&gt;
    using namespace std;
    
    int main()
    {
      int a = 10, b = 3;
      float ans = (a/b);
      cout&lt;&lt;fixed&lt;&lt;setprecision(3);
      cout &lt;&lt; (a/b) &lt;&lt; endl;
      cout &lt;&lt; ans &lt;&lt; endl;
      return 0;
    }
    
    user@box:~/c/precision$ g++ -o precision precision.cpp 
    user@box:~/c/precision$ ./precision 
    3
    3.000


Dividing two integers to produce a float result

Is there really no way to generate a switch case for a given variable in IntelliJ?

Ctrl+Space as well as Ctrl+J yield no results.

IntelliJ: Generate switch case

<p>Is there really no way to generate a switch case for a given variable in IntelliJ?</p>
<p>Ctrl+Space as well as Ctrl+J yield no results.</p>


## Context

I am writing a simple __[JUnit]__ test for the `MyObject` class.

A `MyObject` can be created from a static factory method that takes a varargs of __[String]__.

    MyObject.ofComponents(&quot;Uno&quot;, &quot;Dos&quot;, &quot;Tres&quot;);

At any time during the existence of `MyObject`, clients can inspect the parameters it was created by in the form of a __[List&amp;lt;E&amp;gt;]__, through the `.getComponents()` method.

    myObject.ofComponents(); // -&gt; List&lt;String&gt;: { &quot;Uno&quot;, &quot;Dos&quot;, &quot;Tres&quot; }

In other words, a `MyObject` both remembers and exposes the list of parameters that brought it into existence. More details about this contract:

- The order of `getComponents` will be the same as the one chosen for object creation
- Duplicate subsequent __[String]__ components are allowed and retained in order
- Behaviour on `null` is undefined (other code guarantees no `null` gets to the factory)
- There are no ways to alter the list of components after object instantiation

I am writing a simple test that creates a `MyObject` from a list of __[String]__ and checks that it can return the same list via `.getComponents()`. _I do this immediately but this is supposed to happen at a distance in a realistic code path_.

## Code

Here my attempt:

---

    List&lt;String&gt; argumentComponents = Lists.newArrayList(&quot;One&quot;, &quot;Two&quot;, &quot;Three&quot;);
    List&lt;String&gt; returnedComponents =
        MyObject.ofComponents(
            argumentComponents.toArray(new String[argumentComponents.size()]))
            .getComponents();
    assertTrue(Iterables.elementsEqual(argumentComponents, returnedComponents));

---

## Question

- Is __[Google Guava]__ `Iterables.elementsEqual()` the best way, provided I have the library in my build path, to compare those two lists? _this is something I have been agonizing about; should I use this helper method which goes over an [Iterable&amp;lt;E&amp;gt;].. check size and then iterate running `.equals()`.. or any other of the methods that an Internet search suggests? what&#39;s the canonical way to compare lists for unit tests?_

### Optional insights I would love to get

- Is the method test designed reasonably? I am not an expert in __[JUnit]__!
- Is `.toArray()` the best way to convert a __[List&amp;lt;E&amp;gt;]__ to a varargs of E?


[Google Guava]: http://code.google.com/p/guava-libraries/
&quot;Guava: Google Core Libraries for Java&quot;

[String]:
http://docs.oracle.com/javase/7/docs/api/java/lang/String.html
&quot;JDK: java.lang.String&quot;

[List&amp;lt;E&amp;gt;]:
http://docs.oracle.com/javase/7/docs/api/java/util/List.html
&quot;JDK: java.util.List&lt;E&gt;&quot;

[Iterable&amp;lt;E&amp;gt;]:
http://docs.oracle.com/javase/7/docs/api/java/lang/Iterable.html
&quot;JDK: java.lang.Iterable&lt;E&gt;&quot;

[JUnit]:
http://www.junit.org/
&quot;JUnit: Resources for test driven development&quot;

How to JUnit test that two List&lt;E&gt; contain the same elements in the same order?

I have a ArrayList with custom objects. I want to search inside this ArrayList for Strings.

The class for the objects look like this:

    public class Datapoint implements Serializable {
      
      private String stateBased;
      private String name;
      private String priority;
      private String mainNumber;
      private String groupadress;
      private String dptID;
    
      public Datapoint(){
      }
    
      public String getMainNumber() {
        return mainNumber;
      }
    
      public void setMainNumber(String mainNumber) {
        this.mainNumber = mainNumber;
      }
    
      public String getName() {
        return name;
      }
       
      ..and so on

I know how to search for a string in a ArrayList&lt;String&gt; but how to do that in a ArrayList with my custom objects:

    ArrayList&lt;String&gt; searchList = new ArrayList&lt;String&gt;();
    String search = &quot;a&quot;;
    int searchListLength = searchList.size();
    for (int i = 0; i &lt; searchListLength; i++) {
    if (searchList.get(i).contains(search)) {
    //Do whatever you want here
    }
    }


So I want to have a function to search in my ArrayList with for example five objects for all &quot;name&quot; strings. 


Searching in a ArrayList with custom objects for certain strings

I&#39;d like to convert a date in date1 format to a date object in date2 format.

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(&quot;MMMM dd, yyyy&quot;);
        SimpleDateFormat simpleDateFormat1 = new SimpleDateFormat(&quot;yyyyMMdd&quot;);
        Calendar cal = Calendar.getInstance();
        cal.set(2012, 8, 21);
        Date date = cal.getTime();
        Date date1 = simpleDateFormat.parse(date);
        Date date2 = simpleDateFormat.parse(date1);
        println date1
        println date2

            


How do I convert the date from one format to another date object in another format without using any deprecated classes?

I have a user object that is sent to and from the server. When I send out the user object, I don&#39;t want to send the hashed password to the client. So, I added `@JsonIgnore` on the password property, but this also blocks it from being deserialized into the password that makes it hard to sign up users when they don&#39;t have a password.

How can I only get `@JsonIgnore` to apply to serialization and not deserialization? I&#39;m using Spring JSONView, so I don&#39;t have a ton of control over the `ObjectMapper`.

Things I&#39;ve tried:

 1. Add `@JsonIgnore` to the property
 2. Add `@JsonIgnore` on the getter method only



Only using @JsonIgnore during serialization, but not deserialization

I have seen many posts about using eclipse to Mavenize a project.  Is there a easy way to do that in IntelliJ?  From what I understand about &quot;Mavenize&quot;, it&#39;s just add some xml in pom.xml and the directory structure is in src/main/java, src/main/test ....

How do you &quot;Mavenize&quot; a project using Intellij?

How can I set up that the code is reformatted automatically on saving?

So I don&#39;t always have to press &lt;kbd&gt;Ctrl&lt;/kbd&gt; + &lt;kbd&gt;Alt&lt;/kbd&gt; + &lt;kbd&gt;
L&lt;/kbd&gt;.


Code reformatting on save in PhpStorm or other jetbrains ide

The cheatsheet says that for expanding selection I should use `Ctrl-Up`, but it doesn&#39;t work for me on the latest intelliJ, with Mac OS X 10.7.4

What is the equivalent of `Ctrl-W` for IntelliJ in Mac OS X?

Equivalent of Ctrl-W for IntelliJ Mac

In Eclipse, when I type `main` &lt;kbd&gt;ctr&lt;/kbd&gt;+&lt;kbd&gt;space&lt;/kbd&gt;, it will generate a `static void main` method for me. And when I type `methodName` &lt;kbd&gt;ctr&lt;/kbd&gt;+&lt;kbd&gt;space&lt;/kbd&gt;, smart code completion will suggest generating the method named `methodName`.

How can I auto-generate a **void method** in IntelliJ?

How to generate a void method in IntelliJ IDEA?

Is there a way to remove unused imports in Intellij IDEA on commit?

It is not very optimal to do it manually, &lt;kbd&gt;CTRL&lt;/kbd&gt; + &lt;kbd&gt;ALT&lt;/kbd&gt; + &lt;kbd&gt;O&lt;/kbd&gt; helps but it&#39;s still manual.

Content Type	Original Author	Original Content on Stackoverflow
Question	Stefan Hoth	View Question on Stackoverflow
Solution 1 - Java	Christopher Peisert	View Answer on Stackoverflow
Solution 2 - Java	Fabian Knapp	View Answer on Stackoverflow

IntelliJ: Generate switch case

Java Problem Overview

Java Solutions

Solution 1 - Java

Solution 2 - Java

Dividing two integers to produce a float result

Read HttpContent in WebApi controller

Attributions