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How do I daemonize an arbitrary script in unix?
...ike the killproc in the stopping part: if you had a process that, say, ran java, the killproc will cause all other Java processes to be killed too.
– Chris Jester-Young
Mar 18 '10 at 4:46
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Print an integer in binary format in Java
... do it by writing an algorithm, Is there any built-in function for that in Java?
21 Answers
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How can I format a String number to have commas and round?
...l.
For reference on other formatting options, see https://docs.oracle.com/javase/tutorial/java/data/numberformat.html
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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 ...
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...
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...
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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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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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...
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...