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How to copy Java Collections list
... before) it seems to be for coping the elements index by index. using List.set(int,E) thus element 0 will over write element 0 in the target list etc etc. Not particularly clear from the javadocs I'd have to admit.
List<String> a = new ArrayList<>(a);
a.add("foo");
b.add("bar");
List&l...
Custom bullet symbol for elements in that is a regular character, and not an image
...1em;
text-indent: -1em;
}
Either the padding or the margin needs to be set to zero, with the other one set to 1em. Depending on the “bullet” that you choose, you may need to modify this value. The negative text-indent causes the first line to be moved to the left by that amount, creating a h...
dynamically add and remove view to viewpager
...tion)
{
// ViewPager doesn't have a delete method; the closest is to set the adapter
// again. When doing so, it deletes all its views. Then we can delete the view
// from from the adapter and finally set the adapter to the pager again. Note
// that we set the adapter to null be...
How does Java Garbage Collection work with Circular References?
...
A garbage collector starts from some "root" set of places that are always considered "reachable", such as the CPU registers, stack, and global variables. It works by finding any pointers in those areas, and recursively finding everything they point at. Once it's found ...
Overflow to left instead of right
...div is left aligned and only truncated to the left if the div is exceeded, set the .outer-div to max-width: 100% and display: inline-block. See here
– Luke
Aug 11 '16 at 0:28
2
...
Why doesn't Dijkstra's algorithm work for negative weight edges?
...stra's algorithm, once a vertex is marked as "closed" (and out of the open set) - the algorithm found the shortest path to it, and will never have to develop this node again - it assumes the path developed to this path is the shortest.
But with negative weights - it might not be true. For example:
...
How can I replace every occurrence of a String in a file with PowerShell?
...3 version):
(Get-Content c:\temp\test.txt).replace('[MYID]', 'MyValue') | Set-Content c:\temp\test.txt
Or for V2:
(Get-Content c:\temp\test.txt) -replace '\[MYID\]', 'MyValue' | Set-Content c:\temp\test.txt
share
...
Is there a way to define a min and max value for EditText in Android?
...our Activity :
EditText et = (EditText) findViewById(R.id.myEditText);
et.setFilters(new InputFilter[]{ new InputFilterMinMax("1", "12")});
This will allow user to enter values from 1 to 12 only.
EDIT :
Set your edittext with android:inputType="number".
You can find more details at https://www...
Convert timestamp to date in MySQL query
...----+-------------+
| 1 | 1381262848 |
+------+-------------+
1 row in set (0.00 sec)
Convert the number to a timestamp:
mysql> select id, from_unixtime(mytimestamp) from foo;
+------+----------------------------+
| id | from_unixtime(mytimestamp) |
+------+----------------------------+
...
Which SQL query is faster? Filter on Join criteria or Where clause?
... felt that it is faster on the join criteria because it reduces the result set at the soonest possible moment, but I don't know for sure.
...