You certainly can:

    assert x &gt; 0 : &quot;x must be greater than zero, but x = &quot; + x;

See [Programming with Assertions](https://docs.oracle.com/javase/8/docs/technotes/guides/language/assert.html) for more information.

    assert (condition) : &quot;some message&quot;;

I&#39;d recommend putting the conditional in brackets

    assert (y &gt; x): &quot;y is too small. y = &quot; + y;

Imagine if you came across code like this...

    assert isTrue() ? true : false : &quot;some message&quot;;


Don&#39;t forget this has nothing to do with asserts you&#39;d write in JUnit.

It absolutely does:

    assert importantVar != null : &quot;The important var was null!&quot;;

This will add &quot;The important var was null&quot; to the exception that is thrown.



If you use

    assert Expression1 : Expression2 ;

Expression2 is used as a detail message for the AssertionError.

Just say I have a file: &quot;HelloWorld.pm&quot; in multiple subdirectories within a Git repository.

I would like to issue a command to find the full paths of all the files matching &quot;HelloWorld.pm&quot;:

For example:

    /path/to/repository/HelloWorld.pm
    /path/to/repository/but/much/deeper/down/HelloWorld.pm
    /path/to/repository/please/dont/make/me/search/through/the/lot/HelloWorld.pm

How can I use Git to efficiently find all the full paths that match a given filename?

I realise I can do this with the Linux/Unix find command but I was hoping to avoid scanning all subdirectories looking for instances of the filename.







Can I use Git to search for matching filenames in a repository?

I am writing a searching function, and have thought up of this query using parameters to prevent, or at least limit, SQL injection attacks.  However, when I run it through my program it does not return anything:

`SELECT * FROM compliance_corner WHERE (body LIKE &#39;%@query%&#39;) OR (title LIKE &#39;%@query%&#39;)`

Can parameters be used like this? or are they only valid in an instance such as:

`SELECT * FROM compliance_corner WHERE body LIKE &#39;%&lt;string&gt;%&#39;` (where `&lt;string&gt;` is the search object).

EDIT:  I am constructing this function with VB.NET, does that have impact on the syntax you guys have contributed?

Also, I ran this statement in SQL Server: `SELECT * FROM compliance_corner WHERE (body LIKE &#39;%max%&#39;) OR (title LIKE `%max%&#39;)` and that returns results.

Howto? Parameters and LIKE statement SQL

Seems likes it might be useful to have the assert display a message when an assertion fails.

Currently an `AssertionError` gets thrown, can you specify a custom message for it?

Can you show an example mechanism for doing this (other than creating your own exception type and throwing it)?

Can java&#39;s assert statement allow you to specify a message?

Seems likes it might be useful to have the assert display a message when an assertion fails.
Currently an <code>AssertionError</code> gets thrown, can you specify a custom message for it?
Can you show an example mechanism for doing this (other than creating your own exception type and throwing it)?

Is there a better way of getting this result? This function fails if num has more digits than digits, and I feel like it should be in the library somewhere (like Integer.toString(x,&quot;%3d&quot;) or something)

    static String intToString(int num, int digits) {
        StringBuffer s = new StringBuffer(digits);
        int zeroes = digits - (int) (Math.log(num) / Math.log(10)) - 1; 
        for (int i = 0; i &lt; zeroes; i++) {
            s.append(0);
        }
        return s.append(num).toString();
    }

Add leading zeroes to number in Java?

I have the string 

    a.b.c.d

I want to count the occurrences of &#39;.&#39; in an idiomatic way, preferably a one-liner.

(Previously I had expressed this constraint as &quot;without a loop&quot;, in case you&#39;re wondering why everyone&#39;s trying to answer without using a loop).

How do I count the number of occurrences of a char in a String?

How can I continuously capture images from a webcam?

I want to experiment with object recognition (by maybe using java media framework). 

I was thinking of creating two threads

one thread:

  - Node 1: capture live image
  - Node 2: save image as &quot;1.jpg&quot;
  - Node 3: wait 5 seconds
  - Node 4: repeat...

other thread:

  - Node 1: wait until image is captured
  - Node 2: using the &quot;1.jpg&quot; get colors
    from every pixle
  - Node 3: save data in arrays
  - Node 4: repeat...



Capturing image from webcam in java?

[bCrypt&#39;s javadoc][1] has this code for how to encrypt a password:

    String pw_hash = BCrypt.hashpw(plain_password, BCrypt.gensalt()); 

To check whether a plaintext password matches one that has been hashed previously, use the checkpw method:

    if (BCrypt.checkpw(candidate_password, stored_hash))
        System.out.println(&quot;It matches&quot;);
    else
        System.out.println(&quot;It does not match&quot;);

These code snippets imply to me that the randomly generated salt is thrown away. Is this the case, or is this just a misleading code snippet?


  [1]: http://www.mindrot.org/files/jBCrypt/jBCrypt-0.2-doc/

Do I need to store the salt with bcrypt?

My schema specifies a namespace, but the documents don&#39;t. What&#39;s the simplest way to ignore namespace during JAXB unmarshalling (XML -&gt; object)?

In other words, I have

    &lt;foo&gt;&lt;bar&gt;&lt;/bar&gt;&lt;/foo&gt;

instead of,

    &lt;foo xmlns=&quot;http://tempuri.org/&quot;&gt;&lt;bar&gt;&lt;/bar&gt;&lt;/foo&gt;




JAXB: How to ignore namespace during unmarshalling XML document?

The JUnit framework contains 2 `Assert` classes (in different packages, obviously) and the methods on each appear to be very similar. Can anybody explain why this is?

The classes I&#39;m referring to are: [`junit.framework.Assert`][1] and [`org.junit.Assert`][2].

  [1]: http://junit.org/junit/javadoc/4.5/junit/framework/Assert.html
  [2]: http://junit.org/junit/javadoc/4.5/org/junit/Assert.html

differences between 2 JUnit Assert classes

Does heavy use of unit tests discourage the use of debug asserts?  It seems like a debug assert firing in the code under test implies the unit test shouldn&#39;t exist or the debug assert shouldn&#39;t exist.  &quot;There can be only one&quot; seems like a reasonable principle. Is this the common practice? Or do you disable your debug asserts when unit testing, so they can be around for integration testing?

Edit: I updated &#39;Assert&#39; to debug assert to distinguish an assert in the code under test from the lines in the unit test that check state after the test has run.  

Also here is an example that I believe shows the dilema:
A unit test passes invalid inputs for a protected function that asserts it&#39;s inputs are valid.  Should the unit test not exist? It&#39;s not a public function.  Perhaps checking the inputs would kill perf?  Or should the assert not exist? The function is protected not private so it should be checking it&#39;s inputs for safety.  
 

Best practice for debug Asserts during Unit testing

I want to create a SQL Select to do a unit test in MS SQL Server 2005. The basic idea is this:

```sql
select &#39;Test Name&#39;, foo = &#39;Result&#39;
from bar
where baz = (some criteria)
```

The idea being that, if the value of the &quot;foo&quot; column is &quot;Result&quot;, then I&#39;d get a value of true/1; if it isn&#39;t, I&#39;d get false/0.

Unfortunately, T-SQL doesn&#39;t like the expression; it chokes on the equals sign.

Is there some way of evaluating an expression in the SQL select list and getting a returnable result? (Or some other way of achieving the unit testing that I want?)

---
EDIT: 3 great, answers, all built around CASE. I&#39;ll accept feihtthief&#39;s as he&#39;s got the least rep and thus needs it the most. :-) Thanks to everyone.

Boolean Expressions in SQL Select list

In C#, what&#39;s the difference between 

    Assert.AreNotEqual

 

and 

    Assert.AreNotSame

 



What&#39;s the difference between Assert.AreNotEqual and Assert.AreNotSame?

Is it bad practice to have more than one assertion in a unit test? Does it matter?

Content Type	Original Author	Original Content on Stackoverflow
Question	Allain Lalonde	View Question on Stackoverflow
Solution 1 - Java	Greg Hewgill	View Answer on Stackoverflow
Solution 2 - Java	matt burns	View Answer on Stackoverflow
Solution 3 - Java	Jason Coco	View Answer on Stackoverflow
Solution 4 - Java	Bill the Lizard	View Answer on Stackoverflow

Can java's assert statement allow you to specify a message?

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Howto? Parameters and LIKE statement SQL

Can I use Git to search for matching filenames in a repository?

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