Java Utililty Methods Vector Union

List of utility methods to do Vector Union

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Vector Union

Description

The list of methods to do Vector Union are organized into topic(s).

Method

Vector mergeVectors(Vector v1, Vector v2)
Return a vector with entries existing in both vectors

if (v1 == null || v2 == null) {
 return null;
Vector v = new Vector();
if (v1.isEmpty() || v2.isEmpty()) {
 return v;
int size = v1.size();
...

Vector union(Vector a, Vector b)
union

Vector r = new Vector();
for (int i = 0; i < a.size(); i++)
 r.add(a.elementAt(i));
for (int i = 0; i < b.size(); i++)
 r.add(b.elementAt(i));
return r;

Vector union(Vector vectA, Vector vectB)

This method returns a Vector containing the union of the objects contained in vectA and vectB.

int threshold = 0;
if (vectA != null) {
 threshold = vectA.size();
if (vectB != null) {
 threshold += vectB.size();
if (threshold < 10) 
...

void unionAdd(Vector vect, Object obj)

This method adds obj to vect if and only if vect does not already contain obj.

if (obj == null) {
 return;
if (vect.contains(obj)) {
 return;
vect.addElement(obj);