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What is the difference between up-casting and down-casting with respect to class variable
...og.
Police Dog - Police Dog extends Pet Dog.
public class Dog{
public String getType () {
System.out.println("NormalDog");
return "NormalDog";
}
}
/**
* Pet Dog has an extra method dogName()
*/
public class PetDog extends Dog{
public String getType () {
System.ou...
Efficiency of Java “Double Brace Initialization”?
...Just for reference, double brace initialization is the following:
List<String> list = new ArrayList<String>() {{
add("Hello");
add("World!");
}};
It looks like a "hidden" feature of Java, but it is just a rewrite of:
List<String> list = new ArrayList<String>() {
...
Setting DIV width and height in JavaScript
...
The onclick attribute of a button takes a string of JavaScript, not an href like you provided. Just remove the "javascript:" part.
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How do you select a particular option in a SELECT element in jQuery?
... will match pieces of text; problematic if any of your option text is a substring of another option text.
– Ryan
Nov 3 '14 at 21:56
28
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How to find encoding of a file via script on Linux?
...ill output MIME-type information for the file, which will also include the character-set encoding. I found a man-page for it, too :)
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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
...h mentioning about decoding behavior. getRequestURI() does not decode the string. Where getPathInfo() does decode.
– Kavindu Dodanduwa
Jul 6 '16 at 5:05
1
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What are the differences between numpy arrays and matrices? Which one should I use?
... here. Instead of performing fewer checks, using matrix*matrix requires an extra function call. So the advantage of using matrix is purely syntactic, not better performance.
– unutbu
Sep 18 '17 at 20:44
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Strip whitespace from jsp output
...
Please, use the trim funcion, example
fn:trim(string1)
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How can I listen for a click-and-hold in jQuery?
...our plugin wasn't written for Bootstrap, but works VERY nicely with it! No extra CSS or messing around. Just works. Kudos.
– Andy
Oct 24 '18 at 20:53
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Is “double hashing” a password less secure than just hashing it once?
...len($input); $i++) {
$result += ord($input[$i]);
}
return (string) ($result % 256);
}
Now it should be pretty obvious what this hash function does. It sums together the ASCII values of each character of input, and then takes the modulo of that result with 256.
So let's test it out:
...