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How to get parameters from the URL with JSP
... name to a single value
paramValues: Maps a request parameter name to an array of values
header: Maps a request header name to a single value
headerValues: Maps a request header name to an array of values
cookie: Maps a cookie name to a single cookie
initParam: Maps a context initializatio...
Should a “static final Logger” be declared in UPPER-CASE?
...t reference types that are never followed by "." (dot).
All static final arrays that are never followed by "[" (opening square bracket).
Examples:
MIN_VALUE, MAX_BUFFER_SIZE, OPTIONS_FILE_NAME
Following this convention, logger is a static final object reference as stated in point 2, bu...
Is Java “pass-by-reference” or “pass-by-value”?
... on the stack.
Like so:
int problems = 99;
String name = "Jay-Z";
An array is an object, so it goes on the heap as well. And what about the objects in the array? They get their own heap space, and the address of each object goes inside the array.
JButton[] marxBros = new JButton[3];
marxBros[...
Performance optimization strategies of last resort [closed]
...sts by appending items to their ends. (The fix was to collect the items in arrays, and build the lists all at once.) The interesting thing is that these statements only cost (i.e. were on the call stack) 3/48 of the original time, so they were not in fact a big problem at the beginning. However, aft...
Python: Checking if a 'Dictionary' is empty doesn't seem to work
...check "if x is non-empty dictionary, then do this; if x is non-empty numpy array, then do that". Then the first code will fail on if x when x is numpy array
– jf328
Dec 15 '16 at 8:36
...
How to check if an object is a list or tuple (but not string)?
...ons, iterators. There are exotic things like mmap, less exotic things like array which act pretty much like lists, and probably lots more I've forgotten.
– Nick Craig-Wood
Dec 4 '09 at 6:57
...
Static method in a generic class?
...thod, not in the class definition.
So this worked:
public class QuickSortArray {
public static <T extends Comparable> void quickSort(T[] array, int bottom, int top){
//do it
}
}
Of course, after reading the answers above I realized that this would be an acceptable alternative without...
Why does dividing two int not yield the right value when assigned to double?
...alization affects the behavior of the right-hand side. (Also, reference-to-array initialization prevents array type decay, which is another example of similar behavior.) In all other cases the right-hand side completely ignores the left-hand side.
...
How do I create an immutable Class?
... the constructor
all properties should be getters only
if a collection (or Array) is passed into the constructor, it should be copied to keep the caller from modifying it later
if you're going to return your collection, either return a copy or a read-only version (for example, using ArrayList.ReadOn...
Difference between sh and bash
...rogramming languages. These include things like scoped local variables and arrays. Plain sh is a very minimalistic programming language.
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