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How to read environment variables in Scala
...get("VARIABLE") which will give you an Option[String] rather than throw an error if that variable is missing.
– Cristian Vrabie
Sep 24 '13 at 14:35
4
...
nginx showing blank PHP pages
...ver with php5-fpm. When I try to load the site I get a blank page with no errors. Html pages are served fine but not php. I tried turning on display_errors in php.ini but no luck. php5-fpm.log is not producing any errors and neither is nginx.
...
How do I import the javax.servlet API in my Eclipse project?
...tcontainer-specific libraries in a careless attempt to fix the compilation errors:
java.lang.NullPointerException at org.apache.jsp.index_jsp._jspInit
java.lang.NoClassDefFoundError: javax/el/ELResolver
java.lang.NoSuchFieldError: IS_DIR
java.lang.NoSuchMethodError: javax.servlet.jsp.PageContext.ge...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...ructor, or A doesn't have a conversion operator, then you get compile time error.
Cast from A* to B* always succeeds if A and B are in inheritance hierarchy (or void) otherwise you get compile error.
Gotcha: If you cast base pointer to derived pointer but if actual object is not really derived type...
Why does Ruby have both private and protected methods?
... # true
gimli.name # 'Gimli'
gimli.age # NoMethodError: private method `age'
called for #<Dwarf:0x007ff552140128>
gimli.beard_strength # NoMethodError: protected method `beard_strength'
called for #<Dwarf:0x007ff552...
JAX-RS — How to return JSON and HTTP status code together?
...uuid == null || uuid.trim().length() == 0) {
return Response.serverError().entity("UUID cannot be blank").build();
}
Entity entity = service.getById(uuid);
if(entity == null) {
return Response.status(Response.Status.NOT_FOUND).entity("Entity not found for UUID: " + uuid)....
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
...
You need to read the Python Unicode HOWTO. This error is the very first example.
Basically, stop using str to convert from unicode to encoded text / bytes.
Instead, properly use .encode() to encode the string:
p.agent_info = u' '.join((agent_contact, agent_telno)).encod...
Localization of DisplayNameAttribute
...
When I try this approach, I get an error message saying "An attribute argument must be a constant expression, typeof expression or array creation expression of an attribute parameter type". However, passing the value to LocalizedDisplayName as a string works. ...
How to manage a redirect request after a jQuery Ajax call
... than 200 was not firing. In fact, I could have probably just bound to ajaxError instead. See my answer below for more details.
– Bretticus
Aug 4 '10 at 18:42
2
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Questions every good Java/Java EE Developer should be able to answer? [closed]
...r example why does the method test in below code does not give any compile error despite using final qualifier for the method parameter.
class Name {
private String name;
public Name (String s) {
this.name = s;
}
public void setName(String s) {
this.name = s;
...