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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...
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 ...
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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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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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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How to preserve insertion order in HashMap? [duplicate]
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according to java doc it says: This linked list defines the iteration ordering, which is normally the order in which keys were inserted into the map.¿¿¿¿¿ NORMALLY ????? what does it mean? the order insertion is not garantee....
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How to auto-format code in Eclipse?
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Another option is to go to Window->Preferences->Java->Editor->SaveActions and check the Format source code option. Then your source code will be formatted truly automatically each time you save it.
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千万别惹程序员 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...，可以爬墙去看)，淘宝上有卖的，价格在1万4左右。）
Java/C#是一把塑料餐刀，这说明，Java和C#语言是带虚拟机的，而且其语法和使用并不像C++那么复杂，其泛型编程可以有很多种玩法，而Java和C#的泛型编程是比较单一的。
Pyth...
MongoDB sort排序、index索引教程 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...likes" : 200 }
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{ "_id" : O...