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Step - 1 : For this just make app-bar-display="true" in ofbiz-component.xml file.
Restart the server then run it again you will find practice application in app bar.

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Create UI Labels:

*Step - 1 :*For this create directory by name "config" in your component directory i.e. "practice".
Note: -Here remember to create an entry for the config directory in your ofbiz-component.xml file.
which will be :

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Step - 3: Include this UI Label resource in your main decorator screen which you created earlier and use these one or two ui labels which you are having now.Step - 4 : Use those 2 UI labels at appropriate places.
Note : Always search first for any existing Ui label in ofbiz and if you don't find it there then only create new one.
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Now its time to make this practice application secure by checking authentication (user login):

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this is a code for createPracticePerson in services.xml

<service name="createPracticePerson" default-entity-name="Person" engine="simple"
          location="component://practice/script/org/hotwax/practice/PracticeServices.xml" invoke="createPracticePerson" auth="true">
     <description>Create a Person</description>
     <auto-attributes include="pk" mode="OUT" optional="false"/>
     <attribute name="salutation" mode="IN" type="String" optional="true"/>
     <attribute name="firstName" mode="IN" type="String" optional="false"/>
     <attribute name="middleName" mode="IN" type="String" optional="true"/>
     <attribute name="lastName" mode="IN" type="String" optional="false"/>
     <attribute name="suffix" mode="IN" type="String" optional="true"/>
</service>  

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