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How to define custom exception class in Java, the easiest way?
...'t "inherit" non-default constructors, you need to define the one taking a String in your class. Typically you use super(message) in your constructor to invoke your parent constructor. For example, like this:
public class MyException extends Exception {
public MyException(String message) {
...
What is the difference between static_cast and C style casting?
...For example, the C-style cast would allow an integer pointer to point to a char.
char c = 10; // 1 byte
int *p = (int*)&c; // 4 bytes
Since this results in a 4-byte pointer ( a pointer to 4-byte datatype) pointing to 1 byte of allocated memory, writing to this pointer will either cause ...
Default value of 'boolean' and 'Boolean' in Java
...is no default for Boolean. Boolean must be constructed with a boolean or a String. If the object is unintialized, it would point to null.
The default value of primitive boolean is false.
http://download.oracle.com/javase/6/docs/api/java/lang/Boolean.html
https://docs.oracle.com/javase/tutorial/jav...
Append text to input field
...are two options. Ayman's approach is the most simple, but I would add one extra note to it. You should really cache jQuery selections, there is no reason to call $("#input-field-id") twice:
var input = $( "#input-field-id" );
input.val( input.val() + "more text" );
The other option, .val() can ...
Are nested HTML comments possible?
...ut delving into the SGML that underlies it)) have come to believe that the string <!-- begins a comment, and the string --> ends a comment.
Actually, <! and > delimit an SGML declaration within your HTML document, such as the DOCTYPE declaration we've all seen at the top of our pages. W...
Is there a way to pass optional parameters to a function?
...
2 extra lines to give better introspection is worth it. With this if you run help(func) you get a clearer idea how the argument is interpreted if not passed explicitly.
– Tadhg McDonald-Jensen
...
Calendar Recurring/Repeating Events - Best Storage Method
...e | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+-------+--------+---------------+---------+---------+------------------+------+--------------------------------+
| 1 | SIMPLE | EM1 | ALL | NULL | NULL ...
Difference between -pthread and -lpthread while compiling
...nswer, but, IMO, it doesn't provide enough context and insight. Hence this extra answer.
-lpthread is a solution for a problem that no longer exists (since ~2005).
In the old days there were proprietary implementations of Pthreads API that weren't POSIX-compliant, like LinuxThreads. POSIX standard ...
Post data to JsonP
...be able to Post with JsonP.
(You'll be able to Post Form, bigger than 2000 char than you can use by GET)
Client application Javascript
$.ajax({
type: "POST", // you request will be a post request
data: postData, // javascript object with all my params
url: COMAPIURL, // my backoffice comunic...
How to get RelativeLayout working with merge and include?
..., unfortunately. As you can't have a View as the xml root, we must have an extra ViewGroup there...
– Rafael Nobre
Jul 24 '13 at 13:20
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