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What is the difference between ArrayList.clear() and ArrayList.removeAll()?
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The source code for clear():
public void clear() {
modCount++;
// Let gc do its work
for (int i = 0; i < size; i++)
elementData[i] = null;
size = 0;
}
The source code for removeAll()(As defined in AbstractColle...
Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
I'm creating a colored image like this:
7 Answers
7
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how to convert java string to Date object [duplicate]
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You basically effectively converted your date in a string format to a date object. If you print it out at that point, you will get the standard date formatting output. In order to format it after that, you then need to convert it back to a date object with a specified format (already...
How to find the type of an object in Go?
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The Go reflection package has methods for inspecting the type of variables.
The following snippet will print out the reflection type of a string, integer and float.
package main
import (
"fmt"
"reflect"
)
func main() {
tst := "string"
tst2 :...
How to set the java.library.path from Eclipse
How can I set the java.library.path for a whole Eclipse Project? I'm using a Java library that relies on OS specific files and need to find a .dll/ .so/ .jnilib . But the Application always exits with an error message that those files are not found on the library path.
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How to edit data in result grid in SQL Server Management Studio
...put, but what I want is editable query output, only certain rows matching for my criteria, and edit them in the result grid.
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How to delete an element from an array in C#
...e all instances of 4 without needing to know the index:
LINQ: (.NET Framework 3.5)
int[] numbers = { 1, 3, 4, 9, 2 };
int numToRemove = 4;
numbers = numbers.Where(val => val != numToRemove).ToArray();
Non-LINQ: (.NET Framework 2.0)
static bool isNotFour(int n)
{
return n != 4;
}
int[] n...
How to get URI from an asset File?
I have been trying to get the URI path for an asset file.
11 Answers
11
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How to change title of Activity in Android?
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setTitle not working for me, getSupportActionBar() and getActionBar() also nulls i cant set the title in runtime.
– Ninja Coding
Jan 26 '16 at 17:30
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How to merge lists into a list of tuples?
... you have to know that the zip function stops at the end of the shortest list, which may not be always what you want. the itertools module defines a zip_longest() method which stops at the end of the longest list, filling missing values with something you provide as a parameter.
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