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How to cast an Object to an int
...dered/boxed as an Integer then stored as an Object.
If your object is a String, then you can use the Integer.valueOf() method to convert it into a simple int :
int i = Integer.valueOf((String) object);
It can throw a NumberFormatException if your object isn't really a String with an integer as...
Most concise way to convert a Set to a List
...
List<String> list = new ArrayList<String>(listOfTopicAuthors);
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JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instanti
...y the problem was in ApplesDO Class:
public class ApplesDO {
private String apple;
public String getApple() {
return apple;
}
public void setApple(String apple) {
this.apple = apple;
}
public ApplesDO(CustomType custom) {
//constructor Code
}
...
How to dynamically compose an OR query filter in Django?
... with a list
# of db fields that can change like the following
# list_with_strings = ['dbfield1', 'dbfield2', 'dbfield3']
# init our q objects variable to use .add() on it
q_objects = Q(id__in=[])
# loop trough the list and create an OR condition for each item
for item in list:
q_objects.add(Q...
Turning a string into a Uri in Android
I have a string, 'songchoice' . I want it to become a 'Uri' so I can use with MediaPlayer.create(context, Uri)
2 Answers
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How do I properly escape quotes inside HTML attributes?
I have a drop down on a web page which is breaking when the value string contains a quote.
7 Answers
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PatternSyntaxException: Illegal Repetition when using regex in Java
...uld be plus operator:
user_id : [0-9]+
Double apostrophes only when the string has to contain it.
When the string including curly brackets use:
\{user_id : [0-9]+\}
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Sort array by firstname (alphabetically) in Javascript
...se, correctly sort diacritics, weird symbols like ß, etc when you compare strings, so you may want to use localeCompare. See other answers for clarity.
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How to find the Git commit that introduced a string in any branch?
I want to be able to find a certain string which was introduced in any commit in
any branch, how can I do that? I found something (that I modified for Win32),
but git whatchanged doesn't seem to be looking into the different branches
(ignore the py3k chunk, it's just a msys/win line feed fix)
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What's the difference between a proc and a lambda in Ruby?
...ns nil
proc.call(1,2,3) # prints out 1 and forgets about the extra arguments
2. Lambdas and procs treat the ‘return’ keyword differently
‘return’ inside of a lambda triggers the code right outside of the lambda code
def lambda_test
lam = lambda { return }
lam.call
put...