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Why cannot cast Integer to String in java?
...
Why this is not possible:
Because String and Integer are not in the same Object hierarchy.
Object
/ \
/ \
String Integer
The casting which you are trying, works only if they are in the same hierarchy, e.g.
Object
...
Check empty string in Swift?
In Objective C, one could do the following to check for strings:
14 Answers
14
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Spring RestTemplate GET with parameters
...ing's UriComponentsBuilder class. It's cleaner than manually concatenating strings and it takes care of the URL encoding for you:
HttpHeaders headers = new HttpHeaders();
headers.set("Accept", MediaType.APPLICATION_JSON_VALUE);
UriComponentsBuilder builder = UriComponentsBuilder.fromHttpUrl(url)
...
How do I launch the Android emulator from the command line?
...h it, but you don't have any AVDs created and have to use command line for all the actions. You have to do the following.
Create a new virtual device (AVD) for the platform you need. If you have to use command line for creating your AVD, you can call android create avd -n <name> -t <targe...
Easier way to debug a Windows service
...ne switch for that purpose?
Couldn't you just do:
public static int Main(string[] args)
{
if (!Environment.UserInteractive)
{
// Startup as service.
}
else
{
// Startup as application
}
}
That would have the "benefit", that you can just start your app via doubleclick (OK, if ...
How can I force clients to refresh JavaScript files?
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I always knew the query strings are key-value pair as in ?ver=123. Thanks! :)
– Ankur-m
Feb 15 '12 at 11:41
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Entity Framework: table without primary key
...o modify this View.
Fortunately, this View had a column which was a unique string. My solution was to mark this column as a primary key:
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
[StringLength(255)]
public string UserSID { get; set; }
Cheated EF. Worked perfectly, no one noticed... ...
How to run a JAR file
...ed two files:
Test.java:
public class Test
{
public static void main(String[] args)
{
System.out.println("Hello world");
}
}
manifest.mf:
Manifest-version: 1.0
Main-Class: Test
Note that the text file must end with a new line or carriage return.
The last line will not be p...
Remote debugging Tomcat with Eclipse
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Actually, yours did fix it. Eclipse doesn't actually say anything when it successfully connects, and reconnecting a second time forces the error. So it was working, but I just didn't notice.
– victor
...
Rails migration: t.references with alternative name?
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You can do it this way:
create_table :courses do |t|
t.string :name
t.references :transferrable_as
t.references :same_as
t.timestamps
end
or using t.belongs_to as an alias for t.references
You can't add foreign_key: true to those two references lines. If you want to mark t...