checkstyle.xml

<!DOCTYPE module PUBLIC
 "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
 "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
<module name="Checker">
 <module name="TreeWalker">
 <!-- Code convention checking -->
 <!-- One statement per line, one declaration per line -->
 <module name="OneStatementPerLine">
 <property name="treatTryResourcesAsStatement" value="true"/>
 </module>

 <!-- Add at least one blank line between method definitions and property definitions -->
 <module name="EmptyLineSeparator">
 <property name="tokens" value="VARIABLE_DEF, METHOD_DEF"/>
 <property name="allowMultipleEmptyLines" value="false"/>
 <property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
 </module>

 <!-- Only one declaration per line -->
 <module name="MultipleVariableDeclarations"/>

 <!-- Remove unnecessary parentheses -->
 <module name="UnnecessaryParentheses"/>

 <!-- Avoid Redundant Initializations -->
 <module name="ExplicitInitialization"/>

 <!-- Other checking -->

 <!-- Loops need braces except they are a single line statement -->
 <module name="NeedBraces">
 <property name="tokens" value="LITERAL_CASE, LITERAL_DEFAULT"/>
 <property name="allowSingleLineStatement" value="true"/>
 </module>

 <!-- Class name should be a Hungarian notation, has to start with uppercase -->
 <module name="TypeName"/>

 <!-- Method name should have a Hungarian notation, has to start with lowercase -->
 <module name="MethodName">
 <property name="format" value="^[a-zA-Z](_?[a-zA-Z0-9]+)*$"/>
 <property name="allowClassName" value="true"/>
 </module>

 <!-- Naming a variable in a loop can be one char, other variables have Hungarian notation -->
 <module name="LocalVariableName">
 <property name="format" value="^[a-z][_a-zA-Z0-9]+$"/>
 <property name="allowOneCharVarInForLoop" value="true"/>
 </module>
 </module>
</module>