Say, you went to the post office in your village. There, you saw that they are maintaining all records in pen & paper. Because, In that branch they have no software. So, you wanted to make a prototype/demo of simple software to show them. There are many types of letter & parcel, i.e. Simple letter, Registered letter, Simple parcel & Special parcel. For any letter or parcel - sender's address, receiver's address is mandatory. Besides, registered letter & special parcel need an extra fee. For both type of parcel sender's & receiver's phone number is needed. When a letter or parcel is issued, sent or received, it's status is kept in the system.  ******Please solve thin problem in java. Otherwise refund the attempt******* write code in accordingly under the given examples

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