One potential downside is that this powerful mechanism hides what is going on under the hood, making it hard to debug when things don’t work. What does@Transactionalmean? One of the key points about@Transactionalis that there are two separate concepts to consider, each with it’s own scope...
Most common interview questions are How HashMap works in java, “How get and put method of HashMap work internally”. Here I am trying to explain internal functionality with an easy example. HashMap is one of the most used Collections in java.Rather than going through theory, we will ...
private transient ArrayList listeners = new ArrayList(); private Manager manager = null; private int maxInactiveInterval = -1; // Flag indicating whether this session is new or not. private boolean isNew = false; private boolean isValid = false; private long thisAccessedTime = creationTime; No...
Since Java 5,java.uti.concurrentpackage has lots of useful but complex classes to work on concurrent applications.CountDownLatchis one of those classes which are highly asked in any Java interview with big corporates. In this tutorial,CountDownLatchis explained with examples and concepts around it...
private transient ArrayList listeners = new ArrayList(); private Manager manager = null; private int maxInactiveInterval = -1; // Flag indicating whether this session is new or not. private boolean isNew = false; private boolean isValid = false; ...
Once you have got ordering for your object, you can useCollections.sort()method to sort your ArrayList of objects. This method accepts an ArrayList and sorts them in place. Internally it uses MergeSort to sort your list of objects.
We are using Azure Communication Services and Cognitive Services AI in the same eastus region to make outbound calls. However, there is a delay of 3 to 4 seconds after the user talks on the phone end to get the transcribed text. The code used involves…
List<String> list = new ArrayList<String>(); Iterator<String>iter = list.iterator(); while(iter.hasNext()) { if(iter.next().equals("xyz")) { iter.remove(); } } New to Java? Take a course at Udemy.com to learn how to work with iterators. ...
Let’s explore how to use these operators. 3.flatMapMany Let’s start with a sampleListofStringto create ourMonopublisher: private Mono<List<String>> monoOfList() { List<String> list = new ArrayList<>(); list.add("one"); list.add("two"); ...
Note that there is anArrayListthat sits outside of the methods. This variable is accessed by multiple functions throughout the execution of the component, so it needs to be accessible by all. When the component runs its pre-execute phase, it will initialize theArrayListand prepare it to be ...