Java Utililty Methods Iterator Size

List of utility methods to do Iterator Size

  1. HOME
  2. Java
  3. I
  4. Iterator Size

Description

The list of methods to do Iterator Size are organized into topic(s).

Method

longcount(final Iterator iterator)
count 
long ix = 0;
for (; iterator.hasNext(); ++ix)
    iterator.next();
return ix;
intcount(Iterator triples)
count 
int count = 0;
while (triples.hasNext()) {
    triples.next();
    count++;
return count;
longcount(Iterator iterator)
Determines the number of elements in an iteration. 
if (iterator == null) {
    return 0;
long count = 0;
while (iterator.hasNext()) {
    ++count;
    iterator.next();
return count;
intcount(Iterator it)
count 
if (it == null) {
    throw new IllegalArgumentException("it == null");
int count = 0;
while (it.hasNext()) {
    it.next();
    count++;
return count;
longcounter(final Iterator iterator)
Count the number of objects in an iterator. 
long counter = 0;
try {
    while (true) {
        iterator.next();
        counter++;
} catch (final NoSuchElementException e) {
return counter;
intsize(final Iterator iter)
Returns the number of elements in the iterator sequence. 
if (iter == null) {
    throw new NullPointerException();
int count = 0;
while (iter.hasNext()) {
    iter.next();
    count++;
return count;
intsize(Iterator source)
Get the size of an iterator (number of items in it). 
int result = 0;
while (source.hasNext()) {
    source.next();
    ++result;
return result;
intsize(Iterator iterator)
Resolves the size of a given Iterator by iterating over it. 
int retval = 0;
if (iterator != null) {
    for (; iterator.hasNext(); iterator.next()) {
        retval++;
return retval;
longsize(Iterator iterator)
size 
long size = 0;
while (iterator.hasNext()) {
    iterator.next();
    size += 1;
return size;