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Is there a way to automatically generate getters and setters in Eclipse?
...ariables naming and definition, lombok will do the rest. This is easy to maintain your code.
For example, if you want to add getter and setter method for age variable, you just add two lombok annotations:
@Getter @Setter
public int age = 10;
This is equal to code like that:
private int age =...
Difference between abstraction and encapsulation?
...gins much earlier:
Every function is an encapsulation; in pseudocode:
point x = { 1, 4 }
point y = { 23, 42 }
numeric d = distance(x, y)
Here, distance encapsulates the calculation of the (Euclidean) distance between two points in a plane: it hides implementation details. This is encapsulation...
How to fluently build JSON in Java?
...ject().put("key1", "value1"))
.toString();
System.out.println(jsonString);
OUTPUT:
{"JSON2":"Hello my World!","JSON3":{"key1":"value1"},"JSON1":"Hello World!"}
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Display the current time and date in an Android application
...l methods to do this. I assume you want to put the current date & time into a TextView.
String currentDateTimeString = java.text.DateFormat.getDateTimeInstance().format(new Date());
// textView is the TextView view that should display it
textView.setText(currentDateTimeString);
There is more...
Colorizing text in the console with C++
...OUTPUT_HANDLE);
// you can loop k higher to see more color choices
for(int k = 1; k < 255; k++)
{
// pick the colorattribute k you want
SetConsoleTextAttribute(hConsole, k);
cout << k << " I want to be nice today!" << endl;
}
Character Attributes
Here is ...
Place cursor at the end of text in EditText
...tionChanged() method of an EditText class: public void onSelectionChanged(int start, int end) { CharSequence text = getText(); if (text != null) { if (start != text.length() || end != text.length()) { setSelection(text.length(), text.length()); return; ...
What is a “batch”, and why is GO used?
... signalling to the client program that the set of commands that were input into it up till the "go" need to be sent to the server to be executed.
Why/when do you need it?
GO in MS SQL server has a "count" parameter - so you can use it as a "repeat N times" shortcut.
Extremely large updates might f...
Map and Reduce in .NET
...
The translation is correct but it misses a key point. The shuffle step in map reduce is critical in map-reduce but doesn't show up in the name an one does not have to write any code for it. It is solely driven by the Key that is extracted in the map step. Joel Martinez answ...
How do I create a unique ID in Java? [duplicate]
... Another note - if you only need application uniqueness, and AtomicInteger (as noted by Michael Borgwardt) is a much better option, but if you need global uniqueness, a UUID is a much better bet.
– aperkins
Sep 7 '09 at 15:19
...
What is an initialization block?
...hem and in which order they are executed:
public class Test {
static int staticVariable;
int nonStaticVariable;
// Static initialization block:
// Runs once (when the class is initialized)
static {
System.out.println("Static initalization.");
staticVari...