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How do I change the color of the text in a UIPickerView under iOS 7?
...in the delegate method that is more elegant:
Objective-C:
- (NSAttributedString *)pickerView:(UIPickerView *)pickerView attributedTitleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSString *title = @"sample title";
NSAttributedString *attString =
[[NSAttributedString ...
What is the difference between Serializable and Externalizable in Java?
... code:
public class MyExternalizable implements Externalizable
{
private String userName;
private String passWord;
private Integer roll;
public MyExternalizable()
{
}
public MyExternalizable(String userName, String passWord, Integer roll)
{
this.userName = userName;
this.passWord = pass...
Convert string in base64 to image and save on filesystem in Python
I have a string in base64 format, which represents PNG image. Is there a way to save this image to the filesystem, as a PNG file?
...
Using Spring MVC Test to unit test multipart POST request
...eUpload is deprecated, you'll want to use MockMvcRequestBuilders#multipart(String, Object...) which returns a MockMultipartHttpServletRequestBuilder. Then chain a bunch of file(MockMultipartFile) calls.
Here's a working example. Given a @Controller
@Controller
public class NewController {
@Re...
How do I define a method which takes a lambda as a parameter in Java 8?
...tion(int a, int b);
}
public class MyClass {
public static void main(String javalatte[]) {
// this is lambda expression
TwoArgInterface plusOperation = (a, b) -> a + b;
System.out.println("Sum of 10,34 : " + plusOperation.operation(10, 34));
}
}
Using Java fun...
How to convert strings into integers in Python?
...
int() is the Python standard built-in function to convert a string into an integer value. You call it with a string containing a number as the argument, and it returns the number converted to an integer:
print (int("1") + 1)
The above prints 2.
If you know the structure of your li...
Check whether a string contains a substring
How can I check whether a given string contains a certain substring, using Perl?
3 Answers
...
How can I define an interface for an array of objects with Typescript?
...nterface EnumServiceGetOrderBy {
[index: number]: { id: number; label: string; key: any };
}
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NSString: isEqual vs. isEqualToString
What is the difference between isEqual: and isEqualToString: ?
5 Answers
5
...
Manipulate a url string by adding GET parameters
...
Basic method
$query = parse_url($url, PHP_URL_QUERY);
// Returns a string if the URL has parameters or NULL if not
if ($query) {
$url .= '&category=1';
} else {
$url .= '?category=1';
}
More advanced
$url = 'http://example.com/search?keyword=test&category=1&tags[]=fun&...