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Gson - convert from Json to a typed ArrayList
...t;(){}.getType());
Documentation:
Represents a generic type T.
Java doesn't yet provide a way to represent generic types, so this class does. Forces clients to create a subclass of this class which enables retrieval the type information even at runtime.
For example, to create a type...
Implements vs extends: When to use? What's the difference?
...ce would be an abstract class (not EXACTLY the same but pretty much).
Also java doesn't support multiple inheritance for classes. This is solved by using multiple interfaces.
public interface ExampleInterface {
public void doAction();
public String doThis(int number);
}
public class sub ...
How to obtain Signing certificate fingerprint (SHA1) for OAuth 2.0 on Android?
... copy Key Store Path.
Now open a command prompt and go to C:\Program
Files\Java\jdk1.6.0_39\bin> (or any installed jdk version).
Type keytool -list -v -keystore and then paste your Key Store
Path (Eg. C:\Program Files\Java\jdk1.6.0_39\bin>keytool -list -v
-keystore "E:\My Projects \A...
JPQL IN clause: Java-Arrays (or Lists, Sets…)?
...', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f2772305%2fjpql-in-clause-java-arrays-or-lists-sets%23new-answer', 'question_page');
}
);
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N...
How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator)?
... in English. So, I suggest that if there's really no good solution in the Java world that is internationalization friendly that we start a project on, e.g., GitHub and create a good solution. Let me know if you're interested.
– Greg Mattes
Apr 7 '18 at 13:56
...
What are the use(s) for tags in Go?
...
Kind of like Java annotations?
– Ismail Badawi
Jun 2 '12 at 1:57
8
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Counting inversions in an array
...
So here is O(n log n) solution in java.
long merge(int[] arr, int[] left, int[] right) {
int i = 0, j = 0, count = 0;
while (i < left.length || j < right.length) {
if (i == left.length) {
arr[i+j] = right[j];
j+...
How do I set a JLabel's background color?
...is not painted, since the default of opaque is false for JLabel.
From the JavaDocs:
If true the component paints every pixel within its bounds. Otherwise, the component may not paint some or all of its pixels, allowing the underlying pixels to show through.
For more information, read the Jav...
How do I update the element at a certain position in an ArrayList? [duplicate]
...tring, then just do:
arrList.set(5, newValue);
This can be found in the java api reference here.
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Is it possible to iterate through JSONArray? [duplicate]
...or (int i = 0; i < arr.length(); i++) {
arr.getJSONObject(i);
}
For javax.json.JsonArray, you can do:
for (int i = 0; i < arr.size(); i++) {
arr.getJsonObject(i);
}
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