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read complete file without using loop in java
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If the file is small, you can read the whole data once:
File file = new File("a.txt");
FileInputStream fis = new FileInputStream(file);
byte[] data = new byte[(int) file.length()];
fis.read(data);
fis.close();
String str = new String(data, "UTF-8");
...
How to jQuery clone() and change id?
...t( $div.prop("id").match(/\d+/g), 10 ) +1;
// Clone it and assign the new ID (i.e: from num 4 to ID "klon4")
var $klon = $div.clone().prop('id', 'klon'+num );
// Finally insert $klon wherever you want
$div.after( $klon.text('klon'+num) );
});
<script src="https://code.jquery.c...
“X does not name a type” error in C++
...essageBox line, MyMessageBox has not yet been defined. The compiler has no idea MyMessageBox exists, so cannot understand the meaning of your class member.
You need to make sure MyMessageBox is defined before you use it as a member. This is solved by reversing the definition order. However, you hav...
List of All Locales and Their Short Codes?
...English (Mauritius)",
en_NA: "English (Namibia)",
en_NZ: "English (New Zealand)",
en_MP: "English (Northern Mariana Islands)",
en_PK: "English (Pakistan)",
en_PH: "English (Philippines)",
en_SG: "English (Singapore)",
en_ZA: "English (South Africa)",
en_TT: "English (...
How does the Java 'for each' loop work?
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The construct for each is also valid for arrays. e.g.
String[] fruits = new String[] { "Orange", "Apple", "Pear", "Strawberry" };
for (String fruit : fruits) {
// fruit is an element of the `fruits` array.
}
which is essentially equivalent of
for (int i = 0; i < fruits.length; i++) {
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How to set NODE_ENV to production/development in OS X
... to this file:
/etc/environment
don't use export syntax, just write (in new line if some content is already there):
NODE_ENV=production
it works after restart. You will not have to re-enter export NODE_ENV=production command anymore anywhere and just use node with anything you'd like - forever...
Knight's Shortest Path on Chessboard
... cases. So the solution becomes:
function getMoveCountO1(x, y) {
var newXY = simplifyBySymmetry(x, y);
x = newXY.x;
y = newXY.y;
var specialMoveCount = getSpecialCaseMoveCount(x ,y);
if (specialMoveCount !== undefined)
return specialMoveCount;
else if (isVertica...
How do I fit an image (img) inside a div and keep the aspect ratio?
I have a 48x48 div and inside it there is an img element, I want to fit it into the div without losing any part, in the mean time the ratio is kept, is it achievable using html and css?
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UTF-8 byte[] to String
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Look at the constructor for String
String str = new String(bytes, StandardCharsets.UTF_8);
And if you're feeling lazy, you can use the Apache Commons IO library to convert the InputStream to a String directly:
String str = IOUtils.toString(inputStream, StandardCharsets....
Multidimensional Array [][] vs [,] [duplicate]
... latter is uniform.
That is, a double[][] can validly be:
double[][] x = new double[5][];
x[0] = new double[10];
x[1] = new double[5];
x[2] = new double[3];
x[3] = new double[100];
x[4] = new double[1];
Because each entry in the array is a reference to an array of double. With a jagged array, y...