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Multiple inheritance for an anonymous class
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Anonymous classes must extend or implement something, like any other Java class, even if it's just java.lang.Object.
For example:
Runnable r = new Runnable() {
public void run() { ... }
};
Here, r is an object of an anonymous class which implements Runnable.
An anonymous class can exte...
Scala: What is a TypeTag and how do I use it?
...e == or !=, unless you absolutely know what you do:
scala> typeOf[List[java.lang.String]] =:= typeOf[List[Predef.String]]
res71: Boolean = true
scala> typeOf[List[java.lang.String]] == typeOf[List[Predef.String]]
res72: Boolean = false
The latter checks for structural equality, which often...
What is the difference between an interface and abstract class?
...ometimes untrue. Sometimes, they are not even what you think they are.
In Java, this rule is strongly enforced, while in PHP, interfaces are abstract classes with no method declared.
In Python, abstract classes are more a programming trick you can get from the ABC module and is actually using meta...
how to set desired language in git-gui?
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For Windows users the are two choices as well:
1) Set the LANG environment variable to en.
a) Overall for Windows: http://www.itechtalk.com/thread3595.html
b) For the git shell only:
If you don't want to affect anything else except git applications you might add the following lin...
Why must wait() always be in synchronized block
...ronization primitives at all and work with the abstractions offered in the java.util.concurrent packages.
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Preferred way of loading resources in Java
I would like to know the best way of loading a resource in Java:
5 Answers
5
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Naming convention for Scala constants?
...vention of pattern matching? e.g. val UpperConst = "UPPER_CONST" like part java-style okay or it should be val UpperConst = "UpperConst"
– nir
Aug 15 '16 at 22:49
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Number.sign() in javascript
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Should this not support JavaScript’s (ECMAScript’s) signed zeroes? It seems to work when returning x rather than 0 in the “megafast” function:
function sign(x) {
return typeof x === 'number' ? x ? x < 0 ? -1 : 1 : x === x ? x : NaN :...
What integer hash function are good that accepts an integer hash key?
... built-in integer multiplication unit. C code, assuming int is 32 bit (for Java, replace >> with >>> and remove unsigned):
unsigned int hash(unsigned int x) {
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = (x >> 16) ^ x;
return...
Turning a string into a Uri in Android
...he doc http://developer.android.com/reference/android/net/Uri.html#parse%28java.lang.String%29
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