Combinations.SingletonIterator

java.lang.Object
- org.apache.commons.numbers.combinatorics.Combinations.SingletonIterator

All Implemented Interfaces:

java.util.Iterator<int[]>

Enclosing class:

Combinations
```
private static class Combinations.SingletonIterator
extends java.lang.Object
implements java.util.Iterator<int[]>
```
Iterator with just one element to handle degenerate cases (full array, empty array) for combination iterator.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  private boolean more
  True on initialization, false after first call to next.
  
  private int n
  Number of elements of the singleton array.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  SingletonIterator(int n)
  Create a singleton iterator providing the given array.
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  boolean hasNext()
  
  int[] next()
  
  void remove()
  Unsupported.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface java.util.Iterator
    forEachRemaining

- Field Detail
  - n
```
private final int n
```
    Number of elements of the singleton array.
  - more
```
private boolean more
```
    True on initialization, false after first call to next.
- Constructor Detail
  - SingletonIterator
```
SingletonIterator(int n)
```
    Create a singleton iterator providing the given array.
    
    Parameters:
    
    n - Size of the singleton array returned by the iterator.
- Method Detail
  - hasNext
```
public boolean hasNext()
```
    Specified by:
    
    hasNext in interface java.util.Iterator<int[]>
    
    Returns:
    
    true until next is called the first time, then false.
  - next
```
public int[] next()
```
    Specified by:
    
    next in interface java.util.Iterator<int[]>
    
    Returns:
    
    the singleton at the first activation.
    
    Throws:
    
    java.util.NoSuchElementException - after the first activation.
  - remove
```
public void remove()
```
    Unsupported.
    
    Specified by:
    
    remove in interface java.util.Iterator<int[]>
    
    Throws:
    
    java.lang.UnsupportedOperationException - Remove is not supported.