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In Java, how do I convert a byte array to a string of hex digits while keeping leading zeros? [dupli
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Wouldn't this return extra zeroes? For example if byte array is {0,1,2,3}, it should return 0123, but it will return 00010203, or is it the desired result of a hash?
– Juzer Ali
Jan 21 '13 at 8:23
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How to get the last element of an array in Ruby?
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Use -1 index (negative indices count backward from the end of the array):
a[-1] # => 5
b[-1] # => 6
or Array#last method:
a.last # => 5
b.last # => 6
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Access multiple elements of list knowing their index
...a))
# Result:
(1, 5, 5)
Or you can use numpy:
import numpy as np
a = np.array([-2, 1, 5, 3, 8, 5, 6])
b = [1, 2, 5]
print(list(a[b]))
# Result:
[1, 5, 5]
But really, your current solution is fine. It's probably the neatest out of all of them.
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How do you get the width and height of a multi-dimensional array?
I have an array defined:
6 Answers
6
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What is the Ruby (spaceship) operator?
...if a and b are not comparable then return nil
It's useful for sorting an array.
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Sort array by firstname (alphabetically) in Javascript
I got an array (see below for one object in the array) that I need to sort by firstname using JavaScript.
How can I do it?
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How to remove array element in mongodb?
Here is array structure
5 Answers
5
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Android List Preferences: have summary as selected value?
...tle="A list of preferences"
android:summary="%s"
android:entries="@array/pref_list_entries"
android:entryValues="@array/pref_list_entries_values"
android:defaultValue="0" />
Android will replace %s with the current string value of the preference, as displayed by the ListPreferen...
How to convert an object to a byte array in C#
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To convert an object to a byte array:
// Convert an object to a byte array
public static byte[] ObjectToByteArray(Object obj)
{
BinaryFormatter bf = new BinaryFormatter();
using (var ms = new MemoryStream())
{
bf.Serialize(ms, obj);
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How to initialize a two-dimensional array in Python?
... about [foo] * 10: This means that this wouldn't work if you're filling an array with random numbers (evaluates [random.randint(1,2)] * 10 to [1] * 10 or [2] * 10 which means that you get an array of all 1s or 2s, instead of a random array.
– Tzu Li
Jun 6 '19 a...