Module java.base
Package java.util

# Class Observable

=
@Deprecated(since="9")
public class Observable
extends java.lang.Object

## Constructors

- =
  public Observable()

## Methods

- =
  public void addObserver(java.util.Observer arg0)
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  protected void clearChanged()
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  public int countObservers()
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  public void deleteObserver(java.util.Observer arg0)
- =
  public void deleteObservers()
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  public boolean hasChanged()
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  public void notifyObservers()
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  public void notifyObservers(java.lang.Object arg0)
- =
  protected void setChanged()

## Summary

No differences.