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Why can't I call read() twice on an open file?
For an exercise I'm doing, I'm trying to read the contents of a given file twice using the read() method. Strangely, when I call it the second time, it doesn't seem to return the file content as a string?
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make arrayList.toArray() return more specific types
So, normally ArrayList.toArray() would return a type of Object[] ....but supposed it's an
Arraylist of object Custom , how do I make toArray() to return a type of Custom[] rather than Object[] ?
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Difference between validate(), revalidate() and invalidate() in Swing GUI
... that multiple invalid containers must be refreshed later.
validate() performs relayout. It means invalid content is asked for all the sizes and all the subcomponents' sizes are set to proper values by LayoutManager.
revalidate() is just sum of both. It marks the container as invalid and performs ...
Why does writeObject throw java.io.NotSerializableException and how do I fix it?
I have this exception and I don't understand why it would be thrown or, how I should handle it.
3 Answers
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How can I color Python logging output?
Some time ago, I saw a Mono application with colored output, presumably because of its log system (because all the messages were standardized).
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Passing a method as a parameter in Ruby
I am trying to mess around a little bit with Ruby. Therefor I try to implement the algorithms (given in Python) from the book "Programming Collective Intelligence" Ruby.
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Why not be dependently typed?
...ming a dependently-typed language". The implication seems to be that with more and more language extensions, Haskell is drifting in that general direction, but isn't there yet.
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How to delete/unset the properties of a javascript object? [duplicate]
I'm looking for a way to remove/unset the properties of a JS object so they'll no longer come up if I loop through the object doing for (var i in myObject) . How can this be done?
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How do I filter an array with AngularJS and use a property of the filtered object as the ng-model at
...y is an identity column, so it's unique. But I see that this would be the correct way to solve the generic problem.
– Bernhard Hofmann
Jul 30 '13 at 12:08
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What's wrong with using == to compare floats in Java?
According to this java.sun page == is the equality comparison operator for floating point numbers in Java.
21 Answers
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