This tutorial extends Getting started with Apache Tomcat application server by deploying a simple JEE Application to introduce Spring MVC.
Spring dependencies via Maven
Step 1: Modify the pom.xml file in the simpleWeb project to bring in the Spring web dependency jars.
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Q. Complete the method “changeDateFormat(String paragraph)” which takes a string input containing dates in mm/dd/yyyy format and converts them to “dd/mm/yyyy” format. For example, “My birthday is on 04/25/1980” becomes “My birthday is on 25/04/1980”
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public class Sentences { public static String changeDateFormat(String paragraph) { throw new RunTimeException("Complete this method."); // remove this line } public static void main(String[] args) { System.out.println(changeDateFormat("The season started on the 07/25/2015 and finished on the 08/09/2015, with a bang!!!.")); } } |
A.
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Q. Traverse the tree in depth and return a list of all passed nodes. It should handle different data types as Double, String, etc. The interface for the tree node is
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package tree; import java.util.List; public interface Node<E> { E getValue(); List<Node<E>> getChildren(); } |
A. Tree storing numbers: Tree storing text: #1. … Read more ›...
Auto-unboxing, switch, short circuit logical operators & exception handling are core Java basics that sometimes lead to obscure errors if not understood well & often tested in coding tests.
Q1. What is wrong with this code?
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public class WhatIsWrong { public static void main(String[] args) { double i = 2; switch (i) { case 1: System.out.println("First class"); break; case 2: System.out.println("Second class"); break; default: break; } } } |
A1. compile-error at switch(i) as switch works only with “int”
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This extends 13 Spring basics Q1 – Q7 interview questions & answers. Q8. Can you describe the high level Spring architecture? A8. A Spring Bean represents a POJO (Plain Old Java Object) performing useful operation(s). All Spring Beans reside within a Spring IoC Container. … Read more ›...
Java Collection interview questions and answers and Java String class interview questions and answers are must know for any Java developer as these two APIs are the most frequently used in your Java application code. You can’t write any decent Java application without these 2 APIs. Q1. … Read more...
Extends Writing low latency applications in Java interview Q&As. If the job description says “low latency” application, then be prepared. Even if “low latency” experience is not a requirement, all employers like candidates who can not only build systems that perform well, but also can stress test (e.g. … Read...
Q1. What is the difference between Docker & Kubernetes? A1. Docker & Kubernetes can function without each other, and also both can compliment each other. Docker enables us to run, create and manage containers on a single operating system. If you have Docker installed on a number of hosts with...
This extends Q01: 7+ Java Architectural Patterns Interview Q&As – Part 1. Q2. How does a Java EE application integrate with other systems? A2. Using various protocols like HTTP(S), WebSocket, SOAP, AMQP, RMI, SFTP, TCP, SSH, FIX, proprietary protocols, … Read more ›...
Java interview questions & answers on multithreading scenarios to judge your experience in building applications with concurrency in mind. Q1. Can you give some scenarios where you built concurrent systems? A1. In a concurrent system different threads run concurrently, … Read more ›...
This extends 50+ SQL scenarios based interview questions answered on identifying & deleting duplicate records. You can practice these in SQLs by setting up the data on db-fiddle MySQL V8.0 or a database server & SQL client of your choice. Q01 When you have a table that maintains history of...
Q1. What is RESTful Web service, and why is it favored over SOAP Web service? A1. REST stands for REpresentational State Transfer (REST), which is a stateless software architecture that reads webpages containing XML, JSON, Plain text, etc. REST is a simpler alternative to Simple Object Access Protocol (SOAP) and...
This extends 6 JUnit & JMockit interview questions & answers on Java Unit testing – Part 1. JUnit & JMockit interview questions and answers to write unit testing in Java for better code quality. JUnit interview questions are popular. Q7 What can you mock with JMockit? … Read more ›...
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