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Android encryption / decryption using AES [closed]
...vation is used as it is more secured.
import android.util.Base64;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;
import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParam...
What is the reason for a red exclamation mark next to my project in Eclipse?
... Package Explorer and Project Explorer views now show a
new decorator on Java projects and working sets that contain build
path errors:
The concrete errors can be seen in the Problems view, and if you open
the view menu and select Group By > Java Problem Type, they all show
up ...
Finding Number of Cores in Java
How can I find the number of cores available to my application from within Java code?
4 Answers
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What is the fastest way to compare two sets in Java?
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You have the following solution from https://www.mkyong.com/java/java-how-to-compare-two-sets/
public static boolean equals(Set<?> set1, Set<?> set2){
if(set1 == null || set2 ==null){
return false;
}
if(set1.size() != set2.size()){
return fal...
Eclipse Optimize Imports to Include Static Imports
...so has the Favorite preference section:
Window > Preferences > Java > Editor > Content Assist > Favorites
In mine, I have the following entries (when adding, use "New Type" and omit the .*):
org.hamcrest.Matchers.*
org.hamcrest.CoreMatchers.*
org.junit.*
org.junit.Assert.*
o...
Java ByteBuffer to String
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There's no k.getBytes() method in java.nio.ByteBuffer (may be not in the version am using). So I used k.array() method which will return byte[].
– Madura Pradeep
Apr 20 '16 at 9:29
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Passing Parameters JavaFX FXML
How can I pass parameters to a secondary window in javafx? Is there a way to communicate with the corresponding controller?
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How to parse date string to Date? [duplicate]
...o reconsider if you wouldn't rather like to use HH instead of kk. Read the javadoc for details about valid patterns.
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What's wrong with overridable method calls in constructors?
... the object may be inconsistent and/or incomplete.
A quote from Effective Java 2nd Edition, Item 17: Design and document for inheritance, or else prohibit it:
There are a few more restrictions that a class must obey to allow inheritance. Constructors must not invoke overridable methods, directl...
Cannot change version of project facet Dynamic Web Module to 3.0?
...to create a dynamic webapp in Eclipse. I added some folders like src/test/java and src/test/resources . Also I changed the library in Java Build Path to obtain the JavaSE-1.7. It's all OK up to here.
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