1. public class IntSet 2. private Vector els; 3. //constructor 5. public IntSetO

ID: 3870672 • Letter: 1

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1. public class IntSet 2. private Vector els; 3. //constructor 5. public IntSetO 6. els = new Vector(); 8. 9. public void insert(int x) 10. I/Modifies: this 11. I/Effects: Adds x to the elements of this 12. 13. 14. public void remove(int x) 15. I/Modifies: this 16. l/Effects: removes x from this 18. public boolean isIn(int x)t 19. iaciret sre If i in h ers take 20. 21. 22. private getIndex(Integer x) 23. 24. 25. 26. public int sizeO 27. I/Effects: returns the cardinality of this 28.) 29. 30. public int choose0 throws EmptyExcpetionf 31. 32. //returns an arbitrary element of this 33. ) 34. //Effects: if x is in this returns index where x appears else /ireturns-1 //Effects: if this is empty throws EmptyException else

Explanation / Answer

Choic1 - Duplicates allowed:

         Function affected will be as follows:
         1.Remove(x)- We need to be checking all the elements of the vector
                   because of duplicate entries. We can not break if
                   we find the first occurence of that element

         2. getIndex(x) - Here we need to decide which index we have to give
                       or we may have to give all the indexes because there
                       may be mutiple entries of x.

Choic2 - Duplicates disallowed:

There won't be any considerations in this case as all
the functions have clarity in their output.

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1. public class IntSet 2. private Vector els; 3. //constructor 5. public IntSetO

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1. public class IntSet 2. private Vector els; 3. //constructor 5. public IntSetO

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