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Java 8: performance of Streams vs Collections
I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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Java ArrayList replace at specific index
I need help with this java please. I created an ArrayList of bulbs, and I'm trying to replace a bulb at specific index with another bulb. So with the following heading, how do I proceed?
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Why do we need break after case statements?
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Java comes from C and that is the syntax from C.
There are times where you want multiple case statements to just have one execution path.
Below is a sample that will tell you how many days in a month.
class SwitchDemo2 {
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Difference between FetchType LAZY and EAGER in Java Persistence API?
I am a newbie to Java Persistence API and Hibernate.
15 Answers
15
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What is PECS (Producer Extends Consumer Super)?
... syntax and assumes declaration-site variance, which is quite different to Java's weird call-site variance... Maybe I should write a more detailed answer that clearly shows how this sketch applies to Java...
– Andrey Tyukin
Jun 15 '14 at 23:11
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Java regular expression OR operator
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Post as a guest
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How to retrieve a file from a server via SFTP?
...ing to retrieve a file from a server using SFTP (as opposed to FTPS) using Java. How can I do this?
16 Answers
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Case insensitive string as HashMap key
...ct = {} or var struct = structnew() you can use var struct = createObject('java','java.util.TreeMap').init(createObject('java','java.lang.String').CASE_INSENSITIVE_ORDER); FUGLY, but it works ;)
– Eric Fuller
Nov 27 '14 at 4:09
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What does the “assert” keyword do? [duplicate]
...or();
(If you launched with -enableassertions that is.)
Formally, the Java Language Specification: 14.10. The assert Statement says the following:
14.10. The assert Statement
An assertion is an assert statement containing a boolean expression. An assertion is either enabled or disabled. I...
Find first element by predicate
I've just started playing with Java 8 lambdas and I'm trying to implement some of the things that I'm used to in functional languages.
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