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Expression Versus Statement
... Backus-Naur Form (BNF), as part of the definition of Algol-60. At that point the semantic distinction ("have a value" versus "do something") was enshrined in syntax: one kind of phrase was an expression, and another was a statement, and the parser could tell them apart.
Designers of later languag...
ASP.NET MVC: No parameterless constructor defined for this object
...this... and had to turn my helper function that was returning a SelectList into one that would return a List<SelectListItem>....blarg
– Mark
Oct 22 '12 at 13:45
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How many threads can a Java VM support?
.... Any machine with a modern CPU (most recent couple generations of AMD or Intel) and with 1 - 2 Gig of memory (depending on OS) can easily support a JVM with thousands of Threads.
If you need a more specific answer than this, your best bet is to profile.
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ALTER TABLE without locking the table?
... great tools to have.
Ex:
pt-online-schema-change --alter "ADD COLUMN c1 INT" D=db,t=numbers_are_friends
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Should have subtitle controller already set Mediaplayer error Android
...yer mediaplayer = new MediaPlayer();
if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.KITKAT) {
return mediaplayer;
}
try {
Class<?> cMediaTimeProvider = Class.forName( "android.media.MediaTimeProvider" );
Class<?> cSubtitleCo...
Why doesn't Java allow to throw a checked exception from static initialization block?
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static { throw new NullPointerExcpetion() } - this also will not compile!
– Kirill Bazarov
Mar 26 '14 at 12:57
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What does `kill -0 $pid` in a shell script do?
...l in Debian-based systems is:
Particularly useful signals include HUP, INT, KILL, STOP, CONT, and 0.
Not especially helpful, especially if you don't already know what the signal does. It is also not listed by the output of kill -l, so you won't know about it unless you already know about it.
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What exceptions should be thrown for invalid or unexpected parameters in .NET?
...ngeException – I don’t use this one much, but a common use is indexing into a collection, and giving an index which is to large.
There are other options, too, that do not focus so much on the argument itself, but rather judge the call as a whole:
InvalidOperationException – The argument mi...
Access string.xml Resource File from Java Android Code
...using
String arr[] = getResources().getStringArray(R.array.planet);
for (int i = 0; i < arr.length; i++) {
Toast.makeText(getBaseContext(),arr[i], Toast.LENGTH_LONG).show();
}
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How to create a private class method?
...ect model and the corresponding method lookup flow, especially when taking into consideration that private is NOT an access/visibility modifier, but actually a method call (with the class as its recipient) as discussed here... there's no such thing as "a private section" in Ruby.
To define private ...