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Convert a string representation of a hex dump to a byte array using Java?
...nt len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
Reasons why it is an improveme...
Showing all errors and warnings [duplicate]
...le?
– oshirowanen
Mar 25 '11 at 21:10
1
already this question has been posted stackoverflow.com/q...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
...hese are the same
b = new Array(), // a and b are arrays with length 0
c = ['foo', 'bar'], // these are the same
d = new Array('foo', 'bar'), // c and d are arrays with 2 strings
// these are different:
e = [3] // e.length == 1, e[0] == 3
f = new Ar...
JavaScript checking for null vs. undefined and difference between == and ===
...
+50
How do I check a variable if it's null or undefined...
Is the variable null:
if (a === null)
// or
if (a == null) // but see not...
Accessing elements of Python dictionary by index
...
10 Answers
10
Active
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When should I use UNSIGNED and SIGNED INT in MySQL?
...//dev.mysql.com/doc/refman/5.6/en/integer-types.html
UNSIGNED ranges from 0 to n, while signed ranges from about -n/2 to n/2.
In this case, you have an AUTO_INCREMENT ID column, so you would not have negatives. Thus, use UNSIGNED. If you do not use UNSIGNED for the AUTO_INCREMENT column, your maxi...
How to use sidebar with the keyboard in Sublime Text 2 and 3?
...
You can type Ctrl+0 (Ctrl+Zero) to focus on the side bar.
Then you'll be able to move selection among files with arrow keys and to open the selected file hitting Enter, without touching the mouse.
...
Equation (expression) parser with precedence?
...expr = expr `chainl1` toOp
expr = optChainl1 term addop (toScalar 0)
term = factor `chainl1` mulop
factor = sexpr `chainr1` powop
sexpr = parens aexpr
<|> scalar
<|> ident
powop = sym "^" >>= return . (B Pow)
<|> sym "^-" >...
Draw line in UIView
... to do it. For example, I want to draw a black horizontal line at y-coord=200.
8 Answers
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