The algorithm which takes decisions based on random choices that are generated during its execution is called a randomized algorithm. …. Got it Ryt? Yes, I know, It's difficult to understand so I came up with a problem that can be solved with randomized algorithm So we can easily…

Whenever we need to analyze the time complexity of a particular operation, most of the time, we go with worst-case time analysis. Worst-case time analysis We find where the maximum number of code executions(code-wise) is executed for the given operation and calculate for n number of operations. When we need to find…

Reactive Streams Specification has four interfaces to talk in a reactive way between the applications. Four Interfaces are Publisher Subscriber Subscription Processor Basically, when we need to consume data then we will act as subscribers. and there will be a source that acts as a publisher. We have to…

In some cases, we need to do multiple if-else conditions like the above. Someone may prefer to go with a switch case, but it is not going to give clean and robust code. So How can we remove these multiple if-else conditions? We can do it with a map. For the String literals, you can use the…

Before jumping into Monitor, we need to understand two things. Mutual exclusion When a process/thread is executing its critical section no other processes are allowed to execute its critical section. (Each process has a code segment called “Critical section” in which shared data is accessed.) 2. Synchronisation When…

This is not a traditional spring Kafka consumer setup where the consumer actively listening to a particular topic. Kafka Customer can retrieve the message from the specified offset of the topic. Why we need Spring Kafka has a pattern to listen to topics actively(Kafka listeners). that’s what we need most of the time…

When I code something in Java, I am always worrying about NullPointerException. As a developer, I should provide error-free code. For some projects, I have worked in Javascript, I saw one beautiful/amazing thing in javascript. That is we can check to execute some function if the value is not…