Cuboid: A solid whose, length, breadth & height are different is called a cuboid. It has a six rectangular plane faces, 12 edges & 8 vertex. Cube: A cuboid whose length ,breadth & height are equal is called a cube. Cylinder: When a rectangle. OABO’ is rotate at its oo’ axis in initial position to … Read more
Decimal number is a number where whole number and decimal number are separated by decimal point(.) Number represented in decimal form in known as Decimal numbers. Like decimal– the decimal with the same number of decimal places are called like decimal. Example 2.39, 4.57, 23.86. Unlike decimal– the decimal having different number of decimal places … Read more
A fraction is a number representing a part of the whole e.g. ¼ (1 is the numerator & 4 is the denominator ) is showing whole 4 than ¼ is the 1/4th part. Like fraction– fraction having the same denominator are called like fraction. Unlike fraction– fractions having different denominator are called unlike fraction. Proper … Read more
H.C.F- The highest common factor of two or more given number is the highest (or greatest) of their common factor. e.g. 24 = 1,2,3,4,6,8,12,24 36 = 1,2,3,4,6,9,12,36 H.C.F = 6 Method Factorization: Euclid’s Algorithm determining the HCF of 18 & 30.
Quadrilaterals- a simple closed figure surrounded by four line segment is called a quadrilaterals. It has four sides , four angles, four vertices and two diagonals. The sum of all angles are . Adjacent side- having a common end point. e.g PQ & QR Opposite side- do not have any common point. eg. PQ, RS … Read more
The figure formed by joining three non collinear points by line segment is called a triangle. It has three sides, 3 vertex and 3 angle. The sum of interior angles of triangle is . Exterior angle of triangle– The exterior angle of a triangle is equal to sum of opposite interior angles. The sum of … Read more
Polygon– Simple closed figures having three or more line segment are called polygon (or simple closed curve). Triangle– A three sided polygon is called triangle. Quadrilateral– A four sided polygon is called quadrilateral. Pentagon– A five sided polygon is called a pentagon. Hexagon– A six sided polygon is called hexagon. Heptagon– A seven sided polygon … Read more
As we have already seen the structure of html document. The root of the document is html tag then there are two child tags head and body. Head tag contains meta data of a web page like title, meta,link,base. Syntax
1 2 3 4 5 6 7 8 9 | <html> <head> . . </head> <body> </body> </html> |
Example
1 2 3 4 5 6 7 8 | <html> <head> <title>My First Page</title> </head> <body> Hello How are you. </body> </html> |
index.jsp
1 2 3 4 5 6 7 8 9 10 11 12 13 | <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Servlet Header Example</title> </head> <body> <h1>Servlet Header Example</h1> <a href="header">Get Headers</a> </body> </html> |
Header.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | package com.ebhor.servletheaders; import java.io.IOException; import java.io.PrintWriter; import java.util.Enumeration; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @WebServlet(name = "Header", urlPatterns = {"/header"}) public class Header extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { out.println("<!DOCTYPE html>"); out.println("<html>"); out.println("<head>"); out.println("<title>Servlet Header</title>"); out.println("</head>"); out.println("<body>"); String hostValue = request.getHeader("host"); out.println("<h3>Printing a single header</h3>"); out.println("Header name <b>host </b> value <b>" + hostValue + "</b><br/>"); Enumeration<String> headerNames = request.getHeaderNames(); out.println("<h3>Printing all headers</h3>"); while (headerNames.hasMoreElements()) { String headerName = headerNames.nextElement(); String headerValue = request.getHeader(headerName); out.println("Header name <b>" + headerName + "</b> value <b>" + headerValue + "</b><br/>"); } out.println("</body>"); out.println("</html>"); } finally { out.close(); } } } |
pom.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.ebhor</groupId> <artifactId>ServletHeaders</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>ServletHeaders</name> <properties> <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <version>6.0</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.6</source> <target>1.6</target> <compilerArguments> <endorseddirs>${endorsed.dir}</endorseddirs> </compilerArguments> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.1.1</version> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.1</version> <executions> <execution> <phase>validate</phase> <goals> <goal>copy</goal> </goals> <configuration> <outputDirectory>${endorsed.dir}</outputDirectory> <silent>true</silent> <artifactItems> <artifactItem> <groupId>javax</groupId> <artifactId>javaee-endorsed-api</artifactId> <version>6.0</version> <type>jar</type> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin> </plugins> </build> </project> |
Result
Project Explorer : index.jsp
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | <%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE html"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Getting all parameter values in servlet</title> </head> <body> <h1>Getting all parameter values in servlet</h1> <form action="parametervalues" method="post"> <b>Name:</b><br/> <input type="text" name="name" placeholder="Enter your name"/><br/> <b>Contact No:</b><br/> <input type="text" name="contactNo" placeholder="Enter your contact no"/><br/> <input type="text" name="contactNo" placeholder="Enter your contact no"/><br/> <input type="text" name="contactNo" placeholder="Enter your contact no"/><br/> <input type="text" name="contactNo" placeholder="Enter your contact no"/><br/> <b>Email:</b><br/> <input type="email" name="email" placeholder="Email address"/><br/> <input type="email" name="email" placeholder="Email address"/><br/> <input type="email" name="email" placeholder="Email address"/><br/> <input type="email" name="email" placeholder="Email address"/><br/> <b> Web site</b><br/> <input type="url" name="website" placeholder="Website"/><br/> <input type="url" name="website" placeholder="Website"/><br/> <input type="url" name="website" placeholder="Website"/><br/> <input type="url" name="website" placeholder="Website"/><br/> <input type="submit" value="Submit"/> </form> </body> </html> |
ParameterValues.java
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | package com.ebhor.parametervalues; import java.io.IOException; import java.io.PrintWriter; import java.util.Enumeration; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @WebServlet(name = "ParameterValues", urlPatterns = {"/parametervalues"}) public class ParameterValues extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { out.println("<!DOCTYPE html>"); out.println("<html>"); out.println("<head>"); out.println("<title>Servlet ParameterValues</title>"); out.println("</head>"); out.println("<body>"); Enumeration<String> parameterNames = request.getParameterNames(); out.println("<h1>Parameter name and values are</h1>"); while (parameterNames.hasMoreElements()) { String parameterName = parameterNames.nextElement(); out.println("<h3>"+parameterName+"</h3>"); String[] values = request.getParameterValues(parameterName); for (String value : values) { out.println( value+"<br/>"); } } out.println("</body>"); out.println("</html>"); } finally { out.close(); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } } |
pom.xml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.ebhor</groupId> <artifactId>parameterValues</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>parameterValues</name> <properties> <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <dependency> <groupId>javax</groupId> <artifactId>javaee-web-api</artifactId> <version>6.0</version> <scope>provided</scope> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.6</source> <target>1.6</target> <compilerArguments> <endorseddirs>${endorsed.dir}</endorseddirs> </compilerArguments> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>2.1.1</version> <configuration> <failOnMissingWebXml>false</failOnMissingWebXml> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> <version>2.1</version> <executions> <execution> <phase>validate</phase> <goals> <goal>copy</goal> </goals> <configuration> <outputDirectory>${endorsed.dir}</outputDirectory> <silent>true</silent> <artifactItems> <artifactItem> <groupId>javax</groupId> <artifactId>javaee-endorsed-api</artifactId> <version>6.0</version> <type>jar</type> </artifactItem> </artifactItems> </configuration> </execution> </executions> </plugin> </plugins> </build> </project> |
Result
