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How can I hash a password in Java?
...DF2, which is a good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65536, 128);
SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
byte[] hash = f.generateSecret(spec).ge...
nodeValue vs innerHTML and textContent. How to choose?
...should use innerHTML or nodeValue or textContent. I don't need to create a new node or change the HTML elements or anything — just replace the text. Here's an example of the code:
...
Intellij IDEA: Hotkey for “scroll from source”
...
There is a plugin for this now. See new answer.
– mmm
Nov 6 '15 at 12:15
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CSS: How to have position:absolute div inside a position:relative div not be cropped by an overflow:
... inside another div, let's call it "content". Have overflow hidden on this new inner-div, but keep overflow visible on the green box.
The only catch is that you will then have to mess around to make sure that the content div doesn't interfere with the positioning of the red box, but it sounds like ...
Amazon SimpleDB vs Amazon DynamoDB
...al perfectly. I didn't migrate my code yet, and not plan to do so. But for new products, I choose other databases like dynamodb or mysql.
– Mason Zhang
Jun 9 '15 at 9:32
...
How can I recover a lost commit in Git?
...hed HEAD:
git checkout
git checkout <commit_id>
git checkout -b <new branch> <commit_id>
git checkout HEAD~X // x is the number of commits t go back
This will checkout new branch pointing to the desired commit.
This command will checkout to a given commit.
At this point, you ca...
Dilemma: when to use Fragments vs Activities:
...represents a screen. Can you load another screen in this box? If you use a new box, will you have to copy multiple items from the 1st box? If the answer is Yes, then you should use Fragments, because the root Activity can hold all duplicated elements to save you time in creating them, and you can si...
How to use gradle zip in local system without downloading when using gradle-wrapper
... recommended way but I didn't want to download gradle zip again. Also, I'm new to gradle.
– TheKojuEffect
Apr 7 '14 at 9:41
...
Multiple commands on same line
...ng to do substitutions in a chain and one fails
from a comment
% s/word/newword/ge | % s/word2/newword2/ge
You can use the e flag to ignore the error when the string is not found.
share
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impro...
How to split a String by space
...u can use StringTokenizer class in Java as..
StringTokenizer tokens = new StringTokenizer("Hello I'm your String", " ");
String[] splited = new String[tokens.countTokens()];
int index = 0;
while(tokens.hasMoreTokens()){
splited[index] = tokens.nextToken();
++index;
...