#1: Choose the right type of Java data structure based on usage patterns
like fixed size or required to grow, duplicates allowed or not, ordering is required to be maintained or not, traversal is forward only or bi-directional, inserts at the end only or any arbitrary position,
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Java Garbage Collection interview questions & answers to ascertain your depth of Java knowledge in building industry strength Java applications. Determining optimal Garbage Collection (GC) settings is critical to achieve high throughput & low latency.
Q1. In which part of memory does Java Garbage Collection (i.e.
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Q1. What is a Transaction? A1. A transaction is a set of operations that should be completed as a unit. If one operation fails then all the other operations fail as well. Example 1: If you transfer funds between two accounts there will be two operations in the set Operation...
Q1. What is JNDI? And what are the typical uses within a JEE application? A1. JNDI stands for Java Naming and Directory Interface. It provides a generic interface to LDAP (Lightweight Directory Access Protocol) and other directory services like NDS (Novell Directory Service), … Read more ›...
Over the last few years the number of AWS services that are related to building, managing or deploying software projects on AWS has grown a lot — AWS Amplify, AWS App Runner, AWS Elastic Beanstalk, AWS Code family like CodePipeline, CodeCommit, CodeBuild, CodeStar, CodeArtifact, and Amazon CodeCatalyst. This post does...
What is a data pipeline in cloud? A data pipeline is a means of moving data from one place (E.g source systems) to another (E.g. target/destination). The data is transformed and optimized along the way so that it can be analyzed and used to develop business insights. … Read more...
As the demand for containerised applications continues to grow, expertise in AWS ECS has become increasingly valuable for software & data engineers. Q01. What are the benefits of container orchestration services? A02. Container orchestration automates container deployment, management, scaling, and networking. Orchestration tools manage these complexities, … Read more ›...
Below questions are based on the above diagram, and extends AWS Q&As on VPC, Subnets, Availability Zones, VPN, Route tables, NACLs & Security Groups & 15+ AWS Services overview interview Q&As. Q1. What is the purpose WAF in AWS? … Read more ›...
More Data Structure and Algorithms Coding Questions and answers in Java.
Q1. Write a program that allows you to create an integer array of 5 elements with the following values: int numbers[ ]={5,2,4,3,1}. The program computes the sum of first 5 elements and stores them at element 6,
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The Big O notation and Java data structures go hand-in-hand in coding tests & job interviews Q1. What do you know about the big-O notation and can you give some examples with respect to different data structures? A1. The Big-O notation simply describes how well an algorithm scales or performs...
Q1. What is a class invariant? A1. Class invariant is — what must be true about each instance of a class? If an invariant fails then there could be a bug in either calling-method or called-method. It is convenient to put all the expressions required for checking invariants into reusable...
Q1. What do you understand by client side and server side view technologies? A1. There are client side & server side view technologies available. Server side view technologies In server-side view technology the most of the page rendering happens on the server side. … Read more ›...
1. Why do you want to convert arrays to lists? 1. Arrays don’t play well with generics. 2. Arrays are of fixed size, and if you want to add or insert more elements then a list serves that purpose. 3. … Read more ›...
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