JSTL Less Than Equal(<=), Greater Than Equal(>=)
JSTL Less Than Equal(<=), Greater Than Equal(>=) explains about how to use logical conditions(less than, greater equal etc) with JSTL tag
Consider a JSP Page where you need to check a value whether it is less than, greater than etc and process accordingly, in that scenario, you can follow this example.
On the following table, I am showing 2 different ways (Method 1 & Method 2), you can achieve logical conditions in JSTL
| Logical operation | JSTL Method 1 | JSTL Method 2 |
|---|---|---|
| less than | lt | < |
| greater than | gt | > |
| less than or equal | le | <= |
| greater than or equals | ge | >= |
Required Libraries
Project Structure
JSTL Less Than Equal(le), Greater Than Equal(ge) (Method 1)
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%> <html> <head> <title>Check Less Than equal(le), Greater Than equal(ge)</title> </head> <body> <% // you can also set the values into request scope same as using c:set request.setAttribute("count", 5); %> <!-- you can check "less than(<)" --> <c:if test="${count lt 6}"> count is less than 6<br /> </c:if> <!-- you can check "greater than(>)" --> <c:if test="${count gt 4}"> count is greater than 4<br /> </c:if> <!-- you can check "less than or equals(<=)" --> <c:if test="${count le 5}"> count is less than or equal to 5.<br /> </c:if> <!-- you can check "greater than or equals(>=)" --> <c:if test="${count ge 5}"> count is greater than or equal to 5.<br /> </c:if> </body> </html>
Output
count is less than 6count is greater than 4
count is less than or equal to 5
count is greater than or equal to 5
JSTL Less Than Equal(le), Greater Than Equal(ge) (Method 2)
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn"%> <html> <head> <title>Check Less Than equal(<=), Greater Than equal(>=)</title> </head> <body> <% // you can also set the values into request scope same as using c:set request.setAttribute("count", 5); %> <!-- you can check "less than(<)" --> <c:if test="${count < 6}"> count is less than 6<br /> </c:if> <!-- you can check "greater than(>)" --> <c:if test="${count > 4}"> count is greater than 4<br /> </c:if> <!-- you can check "less than or equals(<=)" --> <c:if test="${count <= 5}"> count is less than or equal to 5.<br /> </c:if> <!-- you can check "greater than or equals(>=)" --> <c:if test="${count >= 5}"> count is greater than or equal to 5.<br /> </c:if> </body> </html>
Output
count is less than 6count is greater than 4
count is less than or equal to 5
count is greater than or equal to 5