How to run Package Program

I am taking same example as in ur book i.e.
Created Cards Folder and then domains folder and file in it i.e. Suit.java,Playingcard.java
Created tests folder inside Cards folder and file TestPlayingCard.java

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Know How to Compile that
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In command Prompt be in Cards folder then write following command :-

1. javac -d . domain\Suit.java


2. javac -d . domain\PlayingCard.java


3. javac -d . tests\TestPlayingCard.java

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To Run
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In cards folder in command prompt


java cards.tests.TestPlayingCart