1. Show the ListStackADT interface 2. Create a ListStackDataStrucClass with the following methods: default constructor, overloaded constructor, copy constructor, getTop, setTop, isEmpty, ifEmpty (if empty throw the exception), push, peek, pop, toString. 3. Create a private inner class of ListStack called StackNode with the following methods: default constructor, overloaded constructor, copy constructor, getValue, getNext, setValue, setNext 4. Create a BaseConverter class (non-generic) with the following methods: default constructor, inputPrompt, convert [converts a BaseNumber to a converted String], convertAll [instantiate a String object] , toString, processAndPrint     5. Create a private inner class BaseNumber. The inner class has the following methods: default constructor, overloaded constructor, getNumber, getBase, setNumber, setBase. [Make your private instance variables in the inner class Long type]. 6. Create a BaseConverterDemo class that only has 2 statements: Create a BaseConverter object and then have it invoke processAndPrint. 7. Exception classes: StackException, EmptyStackException, FullStackException

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