Java Streams, Lambda Expression
Streams We can perform various aggregate operations on the data returned from collections classes by reducing the complexity of the code. ...
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Sunday 22 March 2020
Jenkins Pipeline Project(Declarative pipeline syntax, Pipeline script from SCM)
We generally use "Jenkins Pipeline Project" with Large scale applications with many Jobs. This is created by executing Jenkins ...
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Saturday 21 March 2020
Docker Selenium Grid
Install Docker Enable Virtualization from Bios Setup run VM from Oracle Box Run Docker terminal type --> docker info Go to h...
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Saturday 7 March 2020
How to Create a Standalone Wiremock Stub Server
Why we need Mocking? We are often in a need to create stubs or mocks when the API under test is not completely ready or we need to test t...
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API Scaling, Rate Limiting and API Testing Terminology
Client id and Client secret When you register your app, you will receive a client ID and optionally a client secret . The client ID i...
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Comparable Interface in Java
Java Comparable interface is used to order the objects of user-defined class. This interface is found in java.lang package and contains ...
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Comparator in Java
It is in java.util package Comparator is used to have customized sorting It defines two methods 1.) Compare 2.) Equals public in...
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Why we Override toString()
Class without toString() Override package EmployeeWithLowestSalaryUsingPriorityQueue; public class Employee { String name; i...
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TreeSet
TreeSet is implementation of Set interface We have other implementation as well like HashSet and LinkedHashset. We use HashSet if we ...
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PriorityQueue
In which scenarios we should use PriorityQueue. For example, you may want to order employee records in the ascending order of their salar...
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Thread Pool Concepts and Parameters Required for Tuning
If there are more than corePoolSize but less than maximumPoolSize threads running, a new thread will be created only if the queue is full.)...
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