I want to save my canvas to a img. I have this function: 10 Answers 10 ...

I have a MySQL database table with two columns that interest me. Individually they can each have duplicates, but they should never have a duplicate of BOTH of them having the same value. ...

I'm creating an ASP.NET application that will log some stuff to Windows EventLog. To do this an event source has to be created first. This requires administrative priviledges so I cannot do it in the ASP.NET app. ...

I'm looking to create a base table of images and then compare any new images against that to determine if the new image is an exact (or close) duplicate of the base. ...

All 8 Answers 8 ...

I get this error when I try to do anything with Java in command prompt: 14 Answers 14 ...

I have a class with two class methods (using the classmethod() function) for getting and setting what is essentially a static variable. I tried to use the property() function with these, but it results in an error. I was able to reproduce the error with the following in the interpreter: ...

When using the same JDK (i.e. the same javac executable), are the generated class files always identical? Can there be a difference depending on the operating system or hardware ? Except of the JDK version, could there be any other factors resulting in differences? Are there any compiler opti...

I have an array a which is constantly being updated. Let's say a = [1,2,3,4,5] . I need to make an exact duplicate copy of a and call it b . If a were to change to [6,7,8,9,10] , b should still be [1,2,3,4,5] . What is the best way to do this? I tried a for loop like: ...

I have a double in Java and I want to check if it is NaN . What is the best way to do this? 7 Answers ...