Project N - Java servlets

Part 1 - Preparation - Tomcat / Eclipse / servlet tutorial

Please do the tutorial Using the Eclipse Web Tools Platform with Apache Tomcat. The tutorial is written for Eclipse 3.3 (Europa), there are some small differences for Eclipse 3.4 (Ganymede)/3.5 (Galileo):

in "Setting up Eclipse preferences..." - under Preferences > Server it is now Runtime Environments, not Installed Runtimes
in the "New Dynamic Web Project" wizard dialogs, some options have changed, please use these values:
- Target Runtime: Apache Tomcast v6.0
- Dynamic Web Module version: 2.5
- Configuration: Default Configuration for Apache Tomcat v6.0
the servlet creation wizard has changed, it now look like this:

Part 2 - Calculator servlet

Build a servlet that calculates a mathmatical result of two inputs and a selected operator.

Save the provided HTML file, as "calculator.html", to the wtp-tutorial/WebContent directory that you created during the tutorial. Then create a new servlet, named CalculatorServlet, that gets the two inputed numbers (fields named "operand1" and "operand2") and the desired operand and calculates the result. Treat the input fileds and the result as "float"s.

Sample input and output

Here is several examples of input and output for the severlet.
sample 1 input
sample 1 output
sample 2 input
sample 2 output
sample 3 input
sample 3 output
sample 4 input
sample 4 output

Turnin

Zip up the wtp-tutorial folder and email it to me. It should include all of the tutorial files and the calculator files. The email subject line reading "CS 17.11 - Spring 2010 - Project N". Name the zip attachment Project_N_yourlastname_yourfirstname.zip.

Legend: method/function keyword literal

Updated at: May 7, 2010 2:10 pm