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Easiest way to convert a List to a Set in Java
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Set<Foo> foo = new HashSet<Foo>(myList);
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Rails: Custom text for rails form_for label
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The second parameter to label helper will allow you to set custom text.
<%= f.label :name, 'Your Name' %>
Use Ruby on Rails Documentation to look up helper methods.
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How to make a countdown timer in Android?
...h() {
mTextField.setText("done!");
}
}.start();
It will result in memory leak of the instance of the activity where you use this code, if you don't carefully clean up the references.
use the following code
//Declare timer
CountDownTimer cTimer = null;
//start timer function
void st...
ruby on rails f.select options with custom attributes
... had it right in the code in your question. Using html5 data-attributes:
<%= f.select :country_id, options_for_select(
@countries.map{ |c| [c.name, c.id, {'data-currency_code'=>c.currency_code}] }) %>
Adding an initial selection:
<%= f.select :country_id, options_for_select(
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How to Apply Corner Radius to LinearLayout
...in the drawable folder. Call it, for example, shape.xml
In shape.xml:
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid
android:color="#888888" >
</solid>
<stroke
android:width="2dp"
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XML Schema: Element with attributes containing only text?
I'm having difficulty searching for this. How would I define an element in an XML schema file for XML that looks like this:
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Iterating through a list in reverse order in java
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Try this:
// Substitute appropriate type.
ArrayList<...> a = new ArrayList<...>();
// Add elements to list.
// Generate an iterator. Start just after the last element.
ListIterator li = a.listIterator(a.size());
// Iterate in reverse.
while(li.hasPrevious()) {
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How do I print the type or class of a variable in Swift?
... "String(NSString.self) -> \(NSString.self)")
print( "String(Array<String>.self) -> \(Array<String>.self)")
Which outputs:
String(myvar0.dynamicType) -> __NSCFConstantString
String(myvar1.dynamicType) -> PureSwiftClass
String(myvar2.dynamicType) -> Int
String(myvar...
Can I change the color of Font Awesome's icon color?
I have to wrap my icon within an <a> tag for some reason.
Is there any possible way to change the color of a font-awesome icon to black?
or is it impossible as long as it wrapped within an <a> tag? Font awesome is supposed to be font not image, right?
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The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
...refore, can be used extensively, but in the latter case, it reduces readabilty and hence shouldn't be used.
Another place where auto can be used is when you use new1 or make_* functions , such as here:
//without auto. Not that good, looks cumbersome
SomeType<OtherType>::SomeOtherType * obj...