Why Spring Framework?

Spring Framework is a powerful lightweight web application development framework used for Java Enterprise Edition (JAVAEE). Spring is described as a complete and a modular framework. The Spring Framework can be used in all layers of implementation of a real time application. It can also be used for the development of particular layer of a … Continue reading Why Spring Framework?

Dynamic String Conversion in JAVA

Input: 2B Output: 2000000000 Code : import java.math.BigDecimal; import java.util.Scanner; public class DyanamicConversion { public static void main(String args[]){ //Scanner scan = new Scanner(System.in); String a ="2M"; String[][] conversion = {{"K","1000"},{"M","1000000"},{"B","1000000000"}}; for(int i=0;i<conversion.length;i++){ if(a.endsWith(conversion[i][0])){ BigDecimal temp = new BigDecimal(a.substring(0, a.indexOf(conversion[i][0]))); temp.multiply(new BigDecimal(conversion[i][1])); a = temp.toBigInteger().toString(); System.out.println(a); break; } } } }

Sending HTTP GET Request to a REST API in JAVA

HTTP/HTTPS Get/Post request /response using JAVA below. For detailed visit here: https://www.mkyong.com/java/how-to-send-http-request-getpost-in-java/ Code: import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.URL; import javax.net.ssl.HttpsURLConnection; public class HttpURLConnection { public static void main(String[] args) throws IOException { String response = httpGet("https://services.groupkt.com/state/get/IND/all"); } public static String httpGet(String urlStr) throws IOException { URL obj = new URL(urlStr); HttpsURLConnection con … Continue reading Sending HTTP GET Request to a REST API in JAVA

Understanding Spring MVC project setup

Flow Diagram of Spring MVC  Img Source: TutorialsPoint  Purpose of web.xml Until Spring 3.1 the only way to configure the DispatcherServlet was with the WEB-INF/web.xml file. servlet name is dispatcher an instance of DispatcherServlet Class Will be initialized with a parameter named contextConfigLocation which contains the path to the configuration XML load-on-startup is an integer … Continue reading Understanding Spring MVC project setup