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How to display Toast in Android?
...lled up and then it shows a map. I can move the slider up and down to hide or show the map. When the map is on front, I can handle touch events on that map. Everytime I touch, a AsyncTask is fired up, it downloads some data and makes a Toast that displays the data. Although I start the task on t...
Why do we need tuples in Python (or any immutable data type)?
I've read several python tutorials (Dive Into Python, for one), and the language reference on Python.org - I don't see why the language needs tuples.
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How to create custom exceptions in Java? [closed]
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To define a checked exception you create a subclass (or hierarchy of subclasses) of java.lang.Exception. For example:
public class FooException extends Exception {
public FooException() { super(); }
public FooException(String message) { super(message); }
public FooExcep...
Is it .yaml or .yml?
According to yaml.org , the official file extension is .yaml .
4 Answers
4
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How to set the font style to bold, italic and underlined in an Android TextView?
...'s content bold, italic and underlined. I tried the following code and it works, but doesn't underline.
11 Answers
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What is the difference between a heuristic and an algorithm?
What is the difference between a heuristic and an algorithm?
12 Answers
12
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Is 0 a decimal literal or an octal literal?
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The other important point being that a decimal-literal is a nonzero-digit followed by zero or more digit so there is no ambiguity.
– CB Bailey
Aug 1 '11 at 7:53
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Can't escape the backslash with regex?
... (because the string parser will remove two of them when "de-escaping" it for the string, and then the regex needs two for an escaped regex backslash).
For instance:
regex("\\\\")
is interpreted as...
regex("\\" [escaped backslash] followed by "\\" [escaped backslash])
is interpreted as...
r...
Can a foreign key be NULL and/or duplicate?
Please clarify two things for me:
11 Answers
11
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Is it wrong to use Deprecated methods or classes in Java?
...ting warnings at some places that methods are deprecated, but the code is working fine.
15 Answers
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