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Where do you store your salt strings?
...
The point of a salt is to render all rainbow tables useless and require a new set of them to be made. It takes just as long to guess a string as to make a rainbow table.
For example the SHA-256 hash of "password" is 5e88 4898 da28 0471 51d0 e56f 8dc6 2927 7360 3d0d 6aab bdd6 2a11 ef72 1d15 42d8.
A...
Android Spinner: Get the selected item change event
...r use OnItemSelectedListener() instead:
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
// your code here
}
@Override
public void onNot...
Localization and internationalization, what's the difference?
...ize it by hiring a translator to build the zh-CN resource files, and use a new date/time/currency format.
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Simple way to repeat a String in java
...peat
". ".repeat( 7 ) // Seven period-with-space pairs: . . . . . . .
New in Java 11 is the method String::repeat that does exactly what you asked for:
String str = "abc";
String repeated = str.repeat(3);
repeated.equals("abcabcabc");
Its Javadoc says:
/**
* Returns a string whose value is...
LINQ's Distinct() on a particular property
...unc<TSource, TKey> keySelector)
{
HashSet<TKey> seenKeys = new HashSet<TKey>();
foreach (TSource element in source)
{
if (seenKeys.Add(keySelector(element)))
{
yield return element;
}
}
}
So to find the distinct values using jus...
Can you use reflection to find the name of the currently executing method?
...part since no one else used the exact same technique:
string MethodName = new StackFrame(0).GetMethod().Name;
This should return identical results to the MethodBase.GetCurrentMethod().Name technique, but it's still worth pointing out because I could implement this once in its own method using ind...
When should I use “this” in a class?
...public class Foo
{
public String useBarMethod() {
Bar theBar = new Bar();
return theBar.barMethod(this);
}
public String getName() {
return "Foo";
}
}
public class Bar
{
public void barMethod(Foo obj) {
obj.getName();
}
}
Case 3: Using this...
What is the difference between Factory and Strategy patterns?
...tingSystem ) {
case UNIX :
case LINUX : return new UnixCommand();
case WINDOWS : return new WindowsCommand();
case OSX : return new OSXCommand();
}
}
But suppose your factory needs more advanced or dynamic creation. You may add to the ...
How to get Enum Value from index in Java?
... "making a static copy": public static final ArrayList<Months> ALL = new ArrayList<Month>() {{ for (Months m : Months.values()) add(m); }};, then you can access the elements with Months i = ALL.get(index)
– muelleth
Aug 31 '16 at 8:11
...
JSON formatter in C#?
...e 3.1
public string PrettyJson(string unPrettyJson)
{
var options = new JsonSerializerOptions(){
WriteIndented = true
};
var jsonElement = JsonSerializer.Deserialize<JsonElement>(unPrettyJson);
return JsonSerializer.Serialize(jsonElement, options);
}
...