Java Topics
HubJava Collections FrameworkCollections Practice ProgramsComparable vs ComparatorGenericsIteratorArrayListLinkedListStackVectorHashMapHashtableLinkedHashMapTreeMapArrayDequeDeque Double-Ended QueuePriorityQueueHashSetLinkedHashSetTreeSetAdapter PatternBuilder PatternFactory PatternMVC PatternObserver PatternSingleton PatternDynamic ProgrammingGraphHashingHeapLinked List DSAQueue DSARecursionSearching AlgorithmsSorting AlgorithmsStack DSATime ComplexityTreesException Handling Best PracticesCustom ExceptionException Hierarchyfinally BlockException Handlingthrow aur throwstry-catchBuffered StreamsByte StreamsCharacter StreamsDeserializationFile ClassJava NIO New I/OSerializationArrays in JavaArray OperationsArray Practice ProgramsArray Interview QuestionsJagged ArrayMulti-Dimensional ArraysOne Dimensional Arraybreak aur continuedo-while Loopfor Loopif-else StatementsNested Loopsswitch-case Statementwhile LoopJava Compilation ProcessJava ki FeaturesPehla Java ProgramHistory of JavaJava EditionsJava Program StructureJDK, JRE aur JVMJava Kya Hai?Immutable StringsString Class in JavaString Interview QuestionsString MethodsString Practice ProgramsStringBufferStringBuilderComments in JavaData Types in JavaIdentifiers in JavaInput & Output in JavaJava KeywordsOperators in JavaType Casting in JavaVariables in JavaJava Coding Interview QuestionsCollections Interview QuestionsCore Java Interview QuestionsJDBC Interview QuestionsMultithreading Interview QuestionsOOPs Interview QuestionsSpring Framework Interview QuestionsJava 8 Date/Time APIDefault aur Static Methods in InterfaceFunctional InterfaceLambda ExpressionMethod ReferenceOptional ClassStream APIBatch ProcessingCallableStatementJDBC ArchitectureJDBC — Java Database ConnectivityJDBC Practice ProjectsMySQL ConnectionPreparedStatementResultSetStatement InterfaceTransaction ManagementCreating ThreadsDaemon ThreadExecutor FrameworkInter-Thread CommunicationMultithreading Practice ProgramsRunnable InterfaceSynchronizationThread ClassMultithreading IntroductionThread Life CycleThread PriorityJava Cheat SheetImportant Formulas & Key ConceptsImportant Java ProgramsJava Quick RevisionAbstract ClassAbstractionAnonymous ClassClass and ObjectConstructorEncapsulationInheritanceInner ClassInterfaceMethod OverloadingMethod OverridingObject ClassObject CloningObject-Oriented Programming OOPPolymorphismstatic Keywordsuper Keywordthis KeywordWrapper ClassesArray Practice ProgramsBasic Java Practice ProgramsCollection Practice ProgramsJDBC Practice ProgramsMultithreading Practice ProgramsOOPs Practice ProgramsPlacement Coding QuestionsString Practice ProgramsBanking SystemChat ApplicationE-Commerce Backend — Spring Boot REST APIEmployee Management SystemLibrary Management SystemSpring Boot Fullstack ProjectStudent Management SystemCookies in ServletExpression Language ELGenericServletHttpServletJavaServer Pages JSPJSP TagsMVC ArchitectureHttpServletRequest & HttpServletResponseServlet IntroductionServlet Life CycleSession TrackingDependency InjectionSpring BeansSpring CoreSpring FrameworkAPI GatewaySpring Cloud Config ServerDocker DeploymentEureka Server — Service DiscoverySpring Boot CRUD ApplicationException Handling in Spring BootJWT AuthenticationREST API in Spring BootSpring SecuritySpring BootSpring Data JPAValidation in Spring Boot
JSP Tags
Last Updated : 26 May, 2026
title: JSP Tags
Servlets JSP127 words16 headingsExamples included
title: JSP Tags description: JSP ke standard tags aur JSTL
JSP mein alag-alag types ke tags hote hain jo HTML mein Java functionality add karte hain.
1. JSP Scripting Elements
Scriptlet Tag <% %>
Java code likhne ke liye.
jsp exampleWoHoTech
<%
String name = request.getParameter("name");
int age = Integer.parseInt(request.getParameter("age"));
if (age >= 18) {
out.println("<p>Adult hai</p>");
} else {
out.println("<p>Minor hai</p>");
}
%>Expression Tag <%= %>
Value directly print karne ke liye. Semicolon mat lagao.
jsp exampleWoHoTech
<h1>Hello, <%= request.getParameter("name") %></h1>
<p>Date: <%= new java.util.Date() %></p>
<p>5 + 3 = <%= 5 + 3 %></p>Declaration Tag <%! %>
Variables aur methods declare karne ke liye (instance level).
<%!
int visitCount = 0;
String getGreeting(String name) {
return "Namaste, " + name + "!";
}
%>
<p>Visit count: <%= ++visitCount %></p>
<p><%= getGreeting("Ram") %></p>
2. JSP Directive Tags <%@ %>
Page Directive
jsp exampleWoHoTech
<%@ page language="java"
contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"
import="java.util.*"
errorPage="/error.jsp"
isErrorPage="false"
session="true" %>Include Directive — Static include
jsp exampleWoHoTech
<%@ include file="header.jsp" %>
<h1>Main Content</h1>
<%@ include file="footer.jsp" %>Taglib Directive — JSTL use karne ke liye
jsp exampleWoHoTech
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fn" prefix="fn" %>3. JSP Action Tags <jsp: >
jsp:include — Dynamic include
jsp exampleWoHoTech
<jsp:include page="header.jsp" />
<jsp:include page="sidebar.jsp">
<jsp:param name="section" value="home" />
</jsp:include>jsp:forward — Request forward karo
jsp exampleWoHoTech
<jsp:forward page="/dashboard.jsp" />jsp:useBean — JavaBean use karo
jsp exampleWoHoTech
<jsp:useBean id="student" class="com.example.Student" scope="request" />
<jsp:setProperty name="student" property="name" value="Ram" />
<jsp:getProperty name="student" property="name" />4. JSTL — JSP Standard Tag Library
Core Tags <c: >
jsp exampleWoHoTech
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%-- Variable set karo --%>
<c:set var="name" value="Ram" />
<c:set var="age" value="25" />
<%-- if condition --%>
<c:if test="${age >= 18}">
<p>Adult hai</p>
</c:if>
<%-- choose (if-else) --%>
<c:choose>
<c:when test="${age < 13}">Child</c:when>
<c:when test="${age < 18}">Teenager</c:when>
<c:otherwise>Adult</c:otherwise>
</c:choose>
<%-- forEach loop --%>
<c:forEach var="item" items="${studentList}">
<p>${item.name} - ${item.marks}</p>
</c:forEach>
<%-- forEach with index --%>
<c:forEach var="i" begin="1" end="10" step="1">
<p>${i}</p>
</c:forEach>
<%-- forTokens - string split --%>
<c:forTokens var="fruit" items="Apple,Banana,Mango" delims=",">
<li>${fruit}</li>
</c:forTokens>
<%-- redirect --%>
<c:redirect url="/login.jsp" />
<%-- URL encode --%>
<c:url var="link" value="/profile" >
<c:param name="id" value="5" />
</c:url>
<a href="${link}">Profile</a>
<%-- import URL content --%>
<c:import url="http://example.com/data" />
<%-- out - safe output (XSS protection) --%>
<c:out value="${userInput}" escapeXml="true" />Formatting Tags <fmt: >
jsp exampleWoHoTech
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%-- Number format --%>
<fmt:formatNumber value="12345.678" type="number" maxFractionDigits="2" />
<fmt:formatNumber value="0.75" type="percent" />
<fmt:formatNumber value="9999" type="currency" currencyCode="INR" />
<%-- Date format --%>
<fmt:formatDate value="${now}" pattern="dd/MM/yyyy HH:mm" />Function Tags <fn: >
<%@ taglib uri="http://java.sun.com/jsp/jstl/fn" prefix="fn" %>
${fn:length(studentList)} <!-- List size -->
${fn:toUpperCase("hello")} <!-- HELLO -->
${fn:toLowerCase("HELLO")} <!-- hello -->
${fn:trim(" hello ")} <!-- hello -->
${fn:contains("Hello Java", "Java")} <!-- true -->
${fn:startsWith("Hello", "He")} <!-- true -->
${fn:substring("Hello", 1, 3)} <!-- el -->
${fn:replace("Hello", "l", "r")} <!-- Herro -->
${fn:split("a,b,c", ",")} <!-- array -->
${fn:join(array, "-")} <!-- a-b-c -->
Exam Focus
Revise definitions, diagrams, examples, and short-answer points for JSP Tags.
Interview Use
Prepare one clear explanation, one practical example, and one common mistake for this Java topic.
Search Terms
java, java programming, core java, java master course, java notes, master, course, servlets
Related Java Topics
Continue learning this concept
Servlets JSPCookies in Servlettitle: Cookies in ServletServlets JSPExpression Language ELtitle: Expression Language EL in JSPServlets JSPGenericServlettitle: GenericServlet in JavaServlets JSPHttpServlettitle: HttpServlet in JavaServlets JSPJavaServer Pages JSPtitle: JSP IntroductionServlets JSPMVC Architecturetitle: MVC Architecture in Servlet/JSP