Q1 How will you go about implementing the following validation rules for a user name? — user name must be between 2 and 17 characters long. — valid characters are A …
Java-Success.com It pays to prepare, fast-track & go places
- Home
- Career Tips
- 800+ Java & Big Data Q&As
300+ Big Data Interview FAQs
- FAQs – 01: SQL
- FAQs – 02: Data Modelling
- FAQs – 02: Data Warehouse
- FAQs – 03: Big Data
- FAQs – 04: Hadoop (HDFS)
- FAQs – 05: MapReduce
- FAQs – 06: Hive
- FAQs – 07: Impala
- FAQs – 08: Spark
- FAQs – 09: Spark SQL
- FAQs – 10: Apache Kafka
- FAQs – 11: Data Governance
- FAQs – 11: NoSQL
- FAQs – 12: Data security
- FAQs – 13: Data Science
- FAQs – 14: AWS
- FAQs – 15: Sqoop & Nifi
- FAQs – 16: Yarn, Zookeeper
- FAQs – 40: Scala 140+ FAQs
- FAQs – 41: Python 80+
Big Data Tutorials
- TUT – Apache Storm
- TUT – Cloudera
- TUT – Cloudera on Docker
- TUT – File Formats
- TUT – Flume
- TUT – Hadoop (HDFS)
- TUT – Hadoop & Spark
- TUT – HBase (NoSQL)
- TUT – Hive (SQL)
- TUT – Kafka
- TUT – MapReduce
- TUT – Pig
- TUT – PySpark on Databricks
- TUT – Spark & Java
- TUT – Spark and Scala
- TUT – Spark on Docker
- TUT – Spark Scala on Zeppelin
- TUT – Starting Spark & Scala
- TUT – Starting with Python
- TUT – Zookeeper
- TUT – ⏯ Starting Big Data
300+ Java Interview FAQs
- FAQs – 01: Prepared?
- FAQs – 02: Ice Breaker
- FAQs – 03: Core Java
- FAQs – 04: OOP & FP
- FAQs – 05: JEE
- FAQs – 06: Spring
- FAQs – 07: Hibernate
- FAQs – 08: Web Services
- FAQs – 09: Microservices
- FAQs – 10: Messaging
- FAQs – 11: Architecture
- FAQs – 12: RDBMS
- FAQs – 13: SQL
- FAQs – 14: Code Quality
- FAQs – 15: Key Areas
- FAQs – 16: UML
- FAQs – 17: GIT
- FAQs – 18: Unix
- FAQs – 19: DevOps
- FAQs – 20: AWS
- FAQs – 21: Maven
- FAQs – 22: Regex
- FAQs – 23: JSON & XML
- FAQs – 24: JMeter
16+ Java Key Areas to go places
- Key Area – Best Practices
- Key Area – CI/CD & DevOps
- Key Area – Concurrency Mgmt
- Key Area – Debugging
- Key Area – Design Concepts
- Key Area – Design Patterns
- Key Area – Exception Handling
- Key Area – Going places
- Key Area – Ice Breaker
- Key Area – Judging Experience
- Key Area – Low Latency
- Key Area – Memory Mgmt
- Key Area – Performance
- Key Area – Productivity Tools
- Key Area – QoS & SLAs
- Key Area – Scalability
- Key Area – SDLC
- Key Area – Security
- Key Area – Transaction Mgmt
Java Architect FAQs
Java Code Quality FAQs
Java Coding Q&As
300+ Core Java Interview Q&As
- Core Java – Annotations
- Core Java – AOP
- Core Java – Classes
- Core Java – Collection API
- Core Java – Constructors
- Core Java – Data Structures
- Core Java – Data types
- Core Java – Differences X & Y
- Core Java – Event Driven
- Core Java – Exceptions
- Core Java – FP
- Core Java – GC
- Core Java – Generics
- Core Java – I/O
- Core Java – Java 7
- Core Java – Java 8
- Core Java – JVM
- Core Java – Multithreading
- Core Java – Objects
- Core Java – OOP
- Core Java – OOP to FP
- Core Java – Other
- Core Java – Overview
- Core Java – Reactive Program
- Core Java – Reserved Key Words
- Core Java – Swing & AWT
- Core Java – Understanding
300+ Enterprise Java Interview Q&As
120+ Companion Technologies Q&As
Java Tutorials
- TUT – Akka
- TUT – Akka Java
- TUT – Akka Scala
- TUT – AWS EC2
- TUT – CI/CD Jenkins
- TUT – Core Java
- TUT – CSV and Java
- TUT – Debugging
- TUT – Java 8
- TUT – Java Beginner
- TUT – JSON and Java
- TUT – XML and Java
- TUT – Diagnosis
- TUT – Docker
- TUT – JEE
- TUT – FIX and Java
- TUT – JAXB
- TUT – JDBC
- TUT – JMX
- TUT – JPA
- TUT – JSF
- TUT – Web & Web Services
- TUT – REST Client
- TUT – Kubernetes
- TUT – MySQL
- TUT – Other
- TUT – Apache POI
- TUT – DOS
- TUT – Dozer
- TUT – Drools
- TUT – ESB
- TUT – Groovy
- TUT – Jasper Reports
- TUT – Logging and auditing
- TUT – Metrics
- TUT – Orika Mapping
- TUT – Pentaho Kettle ETL
- TUT – SQL
- TUT – Unix
- TUT – Webspeher MQ
- TUT – YAML
- TUT – Scala
- TUT – Scala Actors
- TUT – Spring & Hibernate
- TUT – Hibernate
- TUT – Hibernate & Spring
- TUT – Spring Basics
- TUT – Spring batch
- TUT – Spring Boot
- TUT – Spring Cloud
- TUT – Spring IO
- TUT – Spring ORM
- TUT – Spring other
- TUT – Spring OXM
- TUT – Tools
- TUT – JMeter
- TUT – Maven
- TUT – Maven Assembly
- TUT – Maven Profiles
- TUT – Productivity Tools
- TUT – ⏯ Starting with Java
- TUT – ⏯ Videos
- TUT – ⏯ Angular with Spring
- TUT – ⏯ JDBC, Hibernate
- TUT – ⏯ Q&As
- TUT – ⏯ Spring Boot
- TUT – ⏯ Spring Core
- TUT – ⏯ Spring MVC
- TUT – ⏯ Starting with Java
- Courses
- Membership
Home › Java-Success.com › Java-Success.com - Q&As › Companion - 120+ Tech Q&As › Archive for Companion – Regex
Blog Archives
Regular Expressions interview Q&As for Java developers
Q1 What’s the difference between a wildcard and a regular expression?
A1 A wildcard is a generic term referring to something that can be substituted for all possibilities. In computer terms, …
300+ Java Interview FAQs
300+ Big Data Interview FAQs
800+ Java Interview Q&As
Mechanical Engineer to self-taught Java engineer within 2 years & a freelancer within 3 years. Freelancing since 2003. Preparation empowered me to attend 190+ job interviews & choose from 150+ job offers with sought-after contract rates. Author of the book “Java/J2EE job interview companion“, which sold 35K+ copies & superseded by this site with 2,050+ registered users. Amazon.com profile | Reviews | LinkedIn | LinkedIn Group | YouTube
Contact us: java-interview@hotmail.com
Reviews
Based on our outdated book (published 2008): Java/JEE Job Interview Companion (Sold 35,000+ copies) via Amazon.com | Amazon.com reviews | Good reads reviews
"After landing a job I have kept on reading the book and recommend it to all my friends..."-- JavaRanch Forum
I can safely say you'd have to buy probably at least 15 individual books and supplement this with reading articles off the internet to get the equivalent diversity of coverage elsewhere...... -- Amazon.uk By Mr. Jeremy
... I was dejected with my rejections in interview about 8 years ago. I just read around 100 pages from your book and since then I have not flunked my interviews! Vivek via LinkedIn.com
This book does a very good job of highlighting the key topics that are likely to be discussed during interviews and giving various levels of answers. Josh Berry via Amazon.com
More reviews
Disclaimer
The contents in this Java-Success are copyrighted and from EmpoweringTech pty ltd. The EmpoweringTech pty ltd has the right to correct or enhance the current content without any prior notice. These are general advice only, and one needs to take his/her own circumstances into consideration. The EmpoweringTech pty ltd will not be held liable for any damages caused or alleged to be caused either directly or indirectly by these materials and resources. Any trademarked names or labels used in this blog remain the property of their respective trademark owners. Links to external sites do not imply endorsement of the linked-to sites. Privacy Policy
© 2021 Java-Success.com
Responsive WordPress Theme powered by CyberChimps
Top
