AbstractCollection

java.lang.Object
- cern.colt.PersistentObject
- - cern.colt.list.AbstractCollection

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

AbstractList
```
public abstract class AbstractCollection
extends PersistentObject
```
Abstract base class for resizable collections holding objects or primitive data types such as int, float, etc. First see the package summary and javadoc tree view to get the broad picture.
Note that this implementation is not synchronized.

Version:

1.0, 09/24/99

See Also:

ArrayList, Vector, Arrays, Serialized Form

Field Summary
- Fields inherited from class cern.colt.PersistentObject
  serialVersionUID

Constructor Summary

Constructors
Modifier Constructor Description

protected AbstractCollection()
Makes this class non instantiable, but still let's others inherit from it.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract void`	`clear()`	Removes all elements from the receiver.
`boolean`	`isEmpty()`	Tests if the receiver has no elements.
`abstract int`	`size()`	Returns the number of elements contained in the receiver.
`abstract java.util.ArrayList`	`toList()`	Returns a `java.util.ArrayList` containing all the elements in the receiver.
`java.lang.String`	`toString()`	Returns a string representation of the receiver, containing the String representation of each element.

Methods inherited from class cern.colt.PersistentObject
clone

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - AbstractCollection
```
protected AbstractCollection()
```
    Makes this class non instantiable, but still let's others inherit from it.
- Method Detail
  - clear
```
public abstract void clear()
```
    Removes all elements from the receiver. The receiver will be empty after this call returns.
  - isEmpty
```
public boolean isEmpty()
```
    Tests if the receiver has no elements.
    
    Returns:
    
    true if the receiver has no elements; false otherwise.
  - size
```
public abstract int size()
```
    Returns the number of elements contained in the receiver.
  - toList
```
public abstract java.util.ArrayList toList()
```
    Returns a java.util.ArrayList containing all the elements in the receiver.
  - toString
```
public java.lang.String toString()
```
    Returns a string representation of the receiver, containing the String representation of each element.
    
    Overrides:
    
    toString in class java.lang.Object