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What does the “assert” keyword do? [duplicate]
...y simple to understand:
When you have a similar situation like this:
String strA = null;
String strB = null;
if (2 > 1){
strA = "Hello World";
}
strB = strA.toLowerCase();
You might receive warning (displaying yellow line on strB = strA.toLowerCase(); ) that strA...
How to get names of classes inside a jar file?
...ava classes contained inside a jar file at /path/to/jar/file.jar.
List<String> classNames = new ArrayList<String>();
ZipInputStream zip = new ZipInputStream(new FileInputStream("/path/to/jar/file.jar"));
for (ZipEntry entry = zip.getNextEntry(); entry != null; entry = zip.getNextEntry()...
How to create an empty file at the command line in Windows?
...ll cause the
variable used to remain unchanged. As usual with set/p, the string to the
right of the equal sign is displayed as a prompt with no CRLF.
Since here the "string to the right of the equal sign" is empty... the result is an empty file.
The difference with cd. > filename (which...
How do I invert BooleanToVisibilityConverter?
... }
if (parameter != null)
{
if (bool.Parse((string)parameter))
{
flag = !flag;
}
}
if (flag)
{
return Visibility.Visible;
}
else
{
return Visibility.Collapse...
Get protocol, domain, and port from URL
...the current address
var url = window.location.href
Then just parse that string
var arr = url.split("/");
your url is:
var result = arr[0] + "//" + arr[2]
Hope this helps
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Removing an activity from the history stack
...r.onActivityResult(requestCode, resultCode, data);
if (resultCode == R.string.unwind_stack_result_id) {
this.setResult(R.string.unwind_stack_result_id);
this.finish();
}
}
then the one that needs to set off the chain of pops from the stack needs to just call this when you w...
When is “Try” supposed to be used in C# method names?
... "Doesn't throw" seems to me overgeneralized. For example, Int32.TryParse(String, NumberStyles, IFormatProvider, Int32) throws ArgumentException if it doesn't like the style parameter.
– Jirka Hanika
Nov 14 '18 at 10:11
...
How do I concatenate two arrays in C#?
...ys instead of lists. eg System.IO.Directory.GetFiles() returns an array of strings.
– orion elenzil
Jan 7 '16 at 17:55
4
...
How to set variables in HIVE scripts
...
One thing to be mindful of is setting strings then referring back to them. You have to make sure the quotes aren't colliding.
set start_date = '2019-01-21';
select ${hiveconf:start_date};
When setting dates then referring to them in code as the strings can ...
Embedded MongoDB when running integration tests
...org.junit.Test;
public class EmbeddedMongoTest
{
private static final String DATABASE_NAME = "embedded";
private MongodExecutable mongodExe;
private MongodProcess mongod;
private MongoClient mongo;
@Before
public void beforeEach() throws Exception {
MongodStarter s...