java - sparkjava and eclipse unresolved compilation problems: -

i have followed tut here http://sparkjava.com/documentation.html#getting-started

pom.xml

<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>spark</groupid>   <artifactid>spark</artifactid>   <version>0.0.1-snapshot</version>   <name>spark</name>   <description>spark</description>     <dependencies>       <dependency>         <groupid>com.sparkjava</groupid>         <artifactid>spark-core</artifactid>         <version>2.2</version>     </dependency>    </dependencies> </project> 

hello.java

import static spark.spark.*;      public class hello {         public static void main(string[] args) {             get("/hello", (req, res)-> "hello world");//eclipse error line         }     } 

i got error eclipse

exception in thread "main" java.lang.error: unresolved compilation problems:      req cannot resolved variable     syntax error on token ",", . expected     syntax error on token "-", -- expected      @ hello.main(hello.java:5) 

java's lambda expressions feature in java 8: oracle link. you'll need change compliance level (and java version, , pom) java 8 make example compile.