Write a java program to identify a duplicate value in a vector?

Answer 1

boolean containsDuplicate(final Vector v) {

// Iterate through each element in v...

for (int i = 1; i < v.size(); ++i) {

// For each element, check to see if there's a duplicate...

for (int j = 0; j < i; ++j) {

// If so, return true

if (v.get(i).equals(v.get(j))) {

return true;

}

}

}

// If we get here, then we have found no duplicates - return false

return false;

}