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Understanding checked vs unchecked exceptions in Java
...t want to. If they do not want to think, they will write a poor exception block that does nothing at all, or worse, deletes or interferes with critical error information. That is why checked exceptions are a failure.
– adrianos
Aug 24 '12 at 13:01
...
How to get the first element of the List or Set? [duplicate]
...;
Followed by or encapsulated within the appropriate checks or try-catch blocks.
Kotlin:
In Kotlin both Arrays and most of the Collections (eg: List) have a first method call.
So your code would look something like this
for a List:
val stringsList: List<String?> = listOf("a", "b", null)
...
In Visual Studio C++, what are the memory allocation representations?
...ADF00D 0x00320798 0xDDDDDDDD 0x00320448 Ptr to next CRT heap block (allocated earlier in time)
0x00320FE4 -28 0xBAADF00D 0x00000000 0xDDDDDDDD 0x00320448 Ptr to prev CRT heap block (allocated later in time)
0x00320FE8 -24 0xBAADF00D 0x00000000 0xDDDDDDDD ...
VIM Ctrl-V Conflict with Windows Paste
...cumentation:
Since CTRLV is used to paste, you can't use it to start a blockwise Visual
selection. You can use CTRLQ instead. You can also use CTRLQ in Insert
mode and Command-line mode to get the old meaning of CTRLV. But CTRLQ
doesn't work for terminals when it's used for control flow...
jasmine: Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL
...ne in the code below) will cause Jasmine to attempt an async call.
//this block signature will trigger async behavior.
it("should work", function(done){
//...
});
//this block signature will run synchronously
it("should work", function(){
//...
});
It doesn't make a difference what the done ...
Which characters make a URL invalid?
...FD / %xB0000-BFFFD / %xC0000-CFFFD
/ %xD0000-DFFFD / %xE1000-EFFFD
These block choices from the old spec seem bizarre and arbitrary given the latest Unicode block definitions; this is probably because the blocks have been added to in the decade since RFC 3987 was written.
Finally, it's perhaps ...
How to get the body's content of an iframe in Javascript?
...e me, but the line of code is an excerpt from the jquery code and the code block is my own example code. The rest should anyone get himself out. the only thing you are missing is the variable iframe. And I can't possibly know where your iframe is or how its ID is.
– algorhythm
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How do you find the sum of all the numbers in an array in Java?
...
You can't. Other languages have some methods for this like array_sum() in PHP, but Java doesn't.
Just..
int[] numbers = {1,2,3,4};
int sum = 0;
for( int i : numbers) {
sum += i;
}
System.out.println(sum);
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Android - Setting a Timeout for an AsyncTask?
...SECONDS);
Note that by calling this in main thread (AKA. UI thread) will block execution, You probably need call it in a separate thread.
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Convert System.Drawing.Color to RGB and Hex Value
...ode looks good to me.
The only thing I can think of is that the try/catch blocks are redundant -- Color is a struct and R, G, and B are bytes, so c can't be null and c.R.ToString(), c.G.ToString(), and c.B.ToString() can't actually fail (the only way I can see them failing is with a NullReferenceEx...