check_style.xml

<?xml version="1.0"?>
 <!DOCTYPE module PUBLIC  
   "-//Puppy Crawl//DTD Check Configuration 1.2//EN"  
   "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">  
  <!-- Checks that there are no tab characters ('\t') in the source code. -->  
 <module name="Checker">   
   <module name="TreeWalker">
     <!-- No EOL should be placed before block start ('{') -->  
     <module name="LeftCurly">  
       <property name="option" value="eol"/>  
       <property name="severity" value="error"/>  
     </module>  
     <!-- '}' rules -->  
     <module name="RightCurly">  
       <!-- '}' should be on the same line as a next statement -->  
       <property name="option" value="same"/>  
       <property name="severity" value="error"/>  
     </module>      
     <!-- Braces are mandatory around code blocks -->  
     <module name="NeedBraces">  
       <property name="severity" value="error"/>  
     </module>  
     <!-- Checks the Javadoc of a method or constructor. -->  
     <module name="JavadocMethod">  
       <!-- Check for JavaDoc only on public methods -->  
       <property name="severity" value="warning"/>  
       <property name="scope" value="public"/>  
     </module>  
     <!-- Checks Javadoc comments for class and interface definitions. -->  
     <module name="JavadocType">  
       <!-- Check for JavaDoc only on public types -->  
       <property name="scope" value="public"/>  
       <property name="severity" value="warning"/>  
     </module>  
     <!-- Checks for Naming Conventions.              -->  
     <!-- See http://checkstyle.sourceforge.net/config_naming.html -->  
     <!-- Sun Naming Conventions -->  
     <module name="ConstantName"/>  
     <module name="LocalFinalVariableName"/>  
     <module name="LocalVariableName"/>  
     <module name="MemberName"/>  
     <module name="PackageName"/>  
     <module name="StaticVariableName"/>  
     <module name="TypeName"/>
     <module name="LineLength">
       <property name="max" value="120"/>
       <property name="severity" value="warning"/> 
     </module>  
     <!-- Checks correct indentation of Java Code. -->  
     <module name="Indentation">  
       <!-- how many spaces to use for new indentation level -->  
       <property name="basicOffset" value="2" />  
       <!-- how far brace should be indented when on next line -->  
       <property name="braceAdjustment" value="0"/>  
       <!-- how much to indent a case label -->  
       <property name="caseIndent" value="2"/>
       <property name="severity" value="warning"/>  
     </module>  
     <!-- Specify method parameters code conventions -->  
     <module name="MethodParamPad">  
       <!-- Whitespace is required after method name -->  
       <property name="option" value="space" />  
       <!-- Check only methods and constructors declarations -->  
       <property name="tokens" value="METHOD_DEF, CTOR_DEF" />
       <property name="severity" value="warning"/>	  
     </module>  
     <!-- Checks the policy on the padding of parentheses; i.e. whether a space is required after a left parenthesis and before a  
        right parenthesis, or such spaces are forbidden. -->  
     <!-- <module name="ParenPad"> -->  
       <!-- Whitespace required before ')' and after ')' -->  
     <!--  <property name="option" value="space"/>  
     </module> -->  
   </module>  
 </module>