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UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
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Now with Java 9, you can use: Map<String,String> unmodifiableMap = Map.ofEntries(entry("A","B"), entry("C","D"), entry("E","F")); which is more beautiful to my mind
– Steph
Sep 11 '18 at 13...
Is passing 'this' in a method call accepted practice in java
...estion is always easier to argument), I just opened one of the most common java.lang classes, the String one, and of course I found instances of this use, for example
1084 // Argument is a String
1085 if (cs.equals(this))
1086 return true;
Look for (this in big "accepted"...
How to return multiple objects from a Java method?
I want to return two objects from a Java method and was wondering what could be a good way of doing so?
25 Answers
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Create a Path from String in Java7
How can I create a java.nio.file.Path object from a String object in Java 7?
4 Answers
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Describe the architecture you use for Java web applications? [closed]
Let's share Java based web application architectures!
10 Answers
10
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Relationship between hashCode and equals method in Java [duplicate]
I read in many places saying while override equals method in Java, should override hashCode method too, otherwise it is "violating the contract".
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Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
In JDK 8 with lambda b93 there was a class java.util.stream.Streams.zip in b93 which could be used to zip streams (this is illustrated in the tutorial Exploring Java8 Lambdas. Part 1 by Dhananjay Nene ). This function :
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Encrypt Password in Configuration Files? [closed]
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A simple way of doing this is to use Password Based Encryption in Java. This allows you to encrypt and decrypt a text by using a password.
This basically means initializing a javax.crypto.Cipher with algorithm "AES/CBC/PKCS5Padding" and getting a key from javax.crypto.SecretKeyFactory with...
Why shouldn't Java enum literals be able to have generic type parameters?
Java enums are great. So are generics. Of course we all know the limitations of the latter because of type erasure. But there is one thing I don't understand, Why can't I create an enum like this:
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Is Random class thread safe?
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A guarantee has been added in the Java 7 docs: "Instances of java.util.Random are threadsafe." docs.oracle.com/javase/7/docs/api/java/util/Random.html
– Matt R
Jul 12 '13 at 14:38
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