CODEWITHSUNDEEP
javavector
boliviab
boliviab

Reputation: 83

How can I return the index of a vector?

I read through the java doc fro Vector and cant see how I can return the index number of a vector after I have just added an element to it . Im trying to do something along these lines :

vec.addElement(new Person(Number,firstName,familyName));

int lastPersonIndex = vec.RETURN THE LAST INDEX();

I tried using lastElement but that returns an object and I want it to be stored in an int.I couldnt work out how I cast this (cant cast an object to an int can you?)

you can see im at beginner level , so any help appreciated

N.B just to add i know there are newer ways that are recommended than using vectors but this is part of a homework and we were taught vectors so I want to use them within a piece of work im doing

Upvotes: 0

Views: 85

Answers (2)

ديناصور الأمة
ديناصور الأمة

Reputation: 496

You should return the vector size - 1:

int lastPersonIndex = vec.size() - 1;

Upvotes: 1

Elliott Frisch
Elliott Frisch

Reputation: 201447

Return the size of the Vector,

int lastPersonIndex = vec.size() - 1; // minus 1 because of 0 based counting.

Upvotes: 2

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