IntSet (ANTLR 3 Tool 3.5.3 API)

All Known Implementing Classes:

BitSet, IntervalSet
```
public interface IntSet
```
A generic set of ints that has an efficient implementation, BitSet, which is a compressed bitset and is useful for ints that are small, for example less than 500 or so, and w/o many ranges. For ranges with large values like unicode char sets, this is not very efficient. Consider using IntervalSet. Not all methods in IntervalSet are implemented.

See Also:

BitSet, IntervalSet

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(int el)`	Add an element to the set
`void`	`addAll(IntSet set)`	Add all elements from incoming set to this set.
`IntSet`	`and(IntSet a)`	Return the intersection of this set with the argument, creating a new set.
`IntSet`	`complement(IntSet elements)`
`boolean`	`equals(java.lang.Object obj)`
`int`	`getSingleElement()`
`boolean`	`isNil()`
`boolean`	`member(int el)`
`IntSet`	`or(IntSet a)`
`void`	`remove(int el)`	remove this element from this set
`int`	`size()`	Return the size of this set (not the underlying implementation's allocated memory size, for example).
`IntSet`	`subtract(IntSet a)`
`java.util.List<java.lang.Integer>`	`toList()`
`java.lang.String`	`toString()`
`java.lang.String`	`toString(Grammar g)`

- Method Detail
  - add
```
void add(int el)
```
    Add an element to the set
  - addAll
```
void addAll(IntSet set)
```
    Add all elements from incoming set to this set. Can limit to set of its own type.
  - and
```
IntSet and(IntSet a)
```
    Return the intersection of this set with the argument, creating a new set.
  - complement
```
IntSet complement(IntSet elements)
```
  - or
```
IntSet or(IntSet a)
```
  - subtract
```
IntSet subtract(IntSet a)
```
  - size
```
int size()
```
    Return the size of this set (not the underlying implementation's allocated memory size, for example).
  - isNil
```
boolean isNil()
```
  - equals
```
boolean equals(java.lang.Object obj)
```
    Overrides:
    
    equals in class java.lang.Object
  - getSingleElement
```
int getSingleElement()
```
  - member
```
boolean member(int el)
```
  - remove
```
void remove(int el)
```
    remove this element from this set
  - toList
```
java.util.List<java.lang.Integer> toList()
```
  - toString
```
java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - toString
```
java.lang.String toString(Grammar g)
```