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super() in Java
...h no arguments.
It can be used also with arguments. I.e. super(argument1) and it will call the constructor that accepts 1 parameter of the type of argument1 (if exists).
Also it can be used to call methods from the parent. I.e. super.aMethod()
More info and tutorial here
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Difference between object and class in Scala
I'm just going over some Scala tutorials on the Internet and have noticed in some examples an object is declared at the start of the example.
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How do I set the rounded corner radius of a color drawable using xml?
On the android website, there is a section about color drawables . Defining these drawables in xml looks like this:
3 Ans...
Why does this C++ snippet compile (non-void function does not return a value) [duplicate]
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This is undefined behavior from the C++11 draft standard section 6.6.3 The return statement paragraph 2 which says:
[...] Flowing off the end of a function is equivalent to a return with no value; this results in undefined behavior in a value-returning function. [...]
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Commands executed from vim are not recognizing bash command aliases
I use bash on mac and one of the aliases is like this
5 Answers
5
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Java Security: Illegal key size or default parameters?
... had asked a question about this earlier, but it didn't get answered right and led nowhere.
19 Answers
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Java: parse int value from a char
...about getNumericValue(char) is that it also works with strings like "el٥" and "el५" where ٥ and ५ are the digits 5 in Eastern Arabic and Hindi/Sanskrit respectively.
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What does jQuery.fn mean?
...pe property.
The jQuery identifier (or $) is just a constructor function, and all instances created with it, inherit from the constructor's prototype.
A simple constructor function:
function Test() {
this.a = 'a';
}
Test.prototype.b = 'b';
var test = new Test();
test.a; // "a", own property
t...
Subprocess changing directory
...ode tries to do is call a program named cd ... What you want is call a command named cd.
But cd is a shell internal. So you can only call it as
subprocess.call('cd ..', shell=True) # pointless code! See text below.
But it is pointless to do so. As no process can change another process's working ...
Java: when to use static methods
...ering when to use static methods? Say if I have a class with a few getters and setters, a method or two, and I want those methods only to be invokable on an instance object of the class. Does this mean I should use a static method?
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