Maybe the title might be better, if someone knows a better one, please edit.
I've seen in many Java code notation that after a method we call another, here is an example.
Toast.makeText(text).setGravity(Gravity.TOP, 0, 0).setView(layout).show();
As you see after calling makeText on the return we call setGravity and so far.
How can I do this with my own classes? Do I have to do anything special?
I am new to photo apps, recently I am interested in making a sticker app like those can be seen in the appstore, I know I would need to use uiimagepickercontroller, uiscrollview and uigesturerecognizer.
However I wonder which code method should I use for the app to load multiple stickers? Should it be called programmatically? Is that I would need to use the if-statement, say if one sticker is loaded, the app will auto generate a new sticker on top of it?
I have a convert method, which takes a String and a class as arguments and constructs an object of the given class, which will be returned.
The usage should look like this
Something s = Converter.convert("...", Something.class)
Is it possible to express this with Java generics?
Something like:
public static <T> T convert(String source, ??? TClass)
What would be ????
Say I have a struct:
struct MyStruct
{
public int X
public int Y
}
And a method in some class that is iterated over many times elsewhere:
public bool MyMethod( MyStruct myStruct )
{
return ...
}
Is changing the MyMethod signature to the following an acceptable optimization?
public bool MyMethod( ref MyStruct myStruct )
If so, how much of an advantage would it really be? If not, about how many fields would a struct need for a big enough advantage using ref this way?
I have a class (Class B) that inherits another class (Class A) that contains virtual methods.
Mistakenly, I omitted the override keyword when declaring a (supposed to be) overriding method in Class B.
Class A
public class ClassA{
public virtual void TestMethod(){
}
}
Class B
public class ClassB : ClassA{
public void TestMethod(){
}
}
The code compiled without a problem. Can anyone explain why?
I want to trigger a special action in the save() method of a Django model object when I'm saving a new record (not updating an existing record.)
Is the check for (self.id != None) necessary and sufficient to guarantee the self record is new and not being updated? Any special cases this might overlook?
i'm playing around with c# reflection api. i can easily load type info of classes, methods etc. in an assembly.
now i wonder how can i load and read the code inside a method?
What value is hashCode() method is returning in java?. i read that it is an memory reference of an object. when i print hascode value for new Integer(1), its 1. for String(a) - 97. so i confused. is it ascii or what type of value is?
How can I find out through reflection what is the string name of the method?
For example given:
class Car{
public void getFoo(){
}
}
I want to get the string "getFoo", something like the following:
Car.getFoo.toString() == "getFoo" // TRUE
I am using Eclipse v3.5.
In previous Eclipse versions i remember if i have defined a method with a parameter and didn't use it internally a warning appears, like this :
public void myMethod( int x ) {
// Didn't use x here so a warning appears at the x parameter.
}
But in v3.5 i do not see this warning. How can i enable it in Eclipse ?
In my messages_controller I have the following private method:
def find_message_or_404(slug)
message = user.messages.find_by_slug(slug)
if message.nil?
raise Error404
end
message
end
I find it not elegant and not very Rubist. Is there a way to improve it?
in java is the name of a method a string? why or why not?
so if i have something like:
public static int METHODNAME (some parameters or not)
{
something to do ;
}
is METHODNAME a string?
Why are these used prior to defining a method for a model?
@classmethod
@staticmethod
What is the difference between them? Are there others I should be aware of?
Must I use them?
What Could be the example scenarios to declare any class or any method as "final"? When do we need to do this?
Please give me some example to understand the practical use of "final"...
please guide me as I am a beginner in OOP
Is there a default timeout for threads waiting on a synchronised method in Java? Some threads in my app are not completing as expected. Is there anyway to check whether threads have died as a result of timeouts?
We are using Java and Javascript to try to display a huge sheet with freeze panes, but it is being very difficult. Does someone know about a library, method, script or something, either free or commercial, to do this?
Thanks.
Hey guys,
while surfing through the web and through stackoverflow.com i found many posts in forums, etc. where this message occures in IE but not in the other browsers. the thing is, the resolutions vary widely and it's not clear for me what's the best way to avoid this problem.
So my question is, if anybody knows exactly, specificly what this message
Object doesn't support this property or method
means, causes, says ,...
thanks for help.
helle
What is the easiest way of pulling an excisting method out of it's class and into a new class using Visual studio 2010 / Resharper?
Edit: I use Resharper version 5.
I'm asking this question, because I can't figure out when I could find an use of this method.
If I've designed everything correctly then I should be able by the medium of normal returns and try catch clauses to handle all problems and end the application in a correct manner.
Am I wrong ?