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What is a covariant return type?
What is a covariant return type in Java? In object-oriented programming in general?
9 Answers
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TypeError: $.ajax(…) is not a function?
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edited Nov 26 '16 at 17:52
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Which CheckedListBox event triggers after a item is checked?
I have a CheckedListBox where I want an event after an item is checked so that I can use CheckedItems with the new state.
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How do you tell someone they're writing bad code? [closed]
...ming conventions, and other things. While things work, the implementation is poor. What's a good way to politely ask or introduce them to use better methodology, without it coming across as questioning (or insulting) their experience and/or education?
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implements Closeable or implements AutoCloseable
... any other resources which needs to be closed.
In your implementation, it is enough to call pw.close(). You should do this in a finally block:
PrintWriter pw = null;
try {
File file = new File("C:\\test.txt");
pw = new PrintWriter(file);
} catch (IOException e) {
System.out.println("bad t...
Is a statically-typed full Lisp variant possible?
Is a statically-typed full Lisp variant possible? Does it even make sense for something like this to exist? I believe one of a Lisp language's virtues is the simplicity of its definition. Would static typing compromise this core principle?
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Unit Testing C Code [closed]
I worked on an embedded system this summer written in straight C. It was an existing project that the company I work for had taken over. I have become quite accustomed to writing unit tests in Java using JUnit but was at a loss as to the best way to write unit tests for existing code (which needed...
Java ArrayList copy
I have an ArrayList l1 of size 10. I assign l1 to new list reference type l2 . Will l1 and l2 point to same ArrayList object? Or is a copy of the ArrayList object assigned to l2 ?
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Git branching strategy integated with testing/QA process
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The way we do it is the following:
We test on the feature branches after we merge the latest develop branch code on them. The main reason is that we do not want to "pollute" the develop branch code before a feature is accepted. In case a fea...
Check if element is visible in DOM
Is there any way that I can check if an element is visible in pure JS (no jQuery) ?
18 Answers
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