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How should I call 3 functions in order to execute them one after the other?
...();
doSomethingElse();
doSomethingUsefulThisTime();
they will execute in order. doSomethingElse will not start until doSomething has completed. doSomethingUsefulThisTime, in turn, will not start until doSomethingElse has completed.
Asynchronous Functions
Asynchronous function, however, will not ...
Android RelativeLayout programmatically Set “centerInParent”
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Completely untested, but this should work:
View positiveButton = findViewById(R.id.positiveButton);
RelativeLayout.LayoutParams layoutParams =
(RelativeLayout.LayoutParams)positiveButton.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PAREN...
Create array of symbols
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The original answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
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Go build: “Cannot find package” (even though GOPATH is set)
Even though I have GOPATH properly set, I still can't get "go build" or "go run" to find my own packages. What am I doing wrong?
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Replace a character at a specific index in a string?
...manokz";
String newName = myName.substring(0,4)+'x'+myName.substring(5);
Or you can use a StringBuilder:
StringBuilder myName = new StringBuilder("domanokz");
myName.setCharAt(4, 'x');
System.out.println(myName);
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How to print a date in a regular format?
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The WHY: dates are objects
In Python, dates are objects. Therefore, when you manipulate them, you manipulate objects, not strings or timestamps.
Any object in Python has TWO string representations:
The regular representation that is used by print can be get using the str() function. It ...
Remove all the children DOM elements in div
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Just to be pedantic --- removing DOM nodes without corresponding JS objects will lead to memory leaks.
– Eugene Lazutkin
Feb 10 '11 at 1:28
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Proper way to implement IXmlSerializable?
...es to implement IXmlSerializable , what are the rules and best practices for implementing it? I've heard that GetSchema() should return null and ReadXml should move to the next element before returning. Is this true? And what about WriteXml - should it write a root element for the object or...
JPA: unidirectional many-to-one and cascading delete
...lation from the parent to the child (not just the opposite).
You'll therefore need to do this:
Either, change the unidirectional @ManyToOne relationship to a bi-directional @ManyToOne, or a unidirectional @OneToMany. You can then cascade REMOVE operations so that EntityManager.remove will remove ...
Rotating and spacing axis labels in ggplot2
I have a plot where the x-axis is a factor whose labels are long. While probably not an ideal visualization, for now I'd like to simply rotate these labels to be vertical. I've figured this part out with the code below, but as you can see, the labels aren't totally visible.
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