Bag (Data Structures and Algorithms, and Client Programs from Algorithms by Robert Sedgewick and Kevin Wayne)

All Superinterfaces:

Iterable<Item>

All Known Implementing Classes:

LinkedBag, ResizingArrayBag
```
public interface Bag<Item>
extends Iterable<Item>
```
This interface specifies the API for the bag data structure.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`add(Item item)`	Adds `item` to this bag.
`boolean`	`isEmpty()`	Returns `true` if this bag is empty, and `false` otherwise.
`int`	`size()`	Returns the number of items in this bag.

Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator

- Method Detail
  - isEmpty
```
boolean isEmpty()
```
    Returns true if this bag is empty, and false otherwise.
    
    Returns:
    
    true if this bag is empty, and false otherwise.
  - size
```
int size()
```
    Returns the number of items in this bag.
    
    Returns:
    
    number of items in this bag.
  - add
```
void add(Item item)
```
    Adds item to this bag.
    
    Parameters:
    
    item - the item.