Class AbstractMap

core/src/main/jdk1.1/java/util/AbstractMap.java:11–164

Title: Description: Copyright: Copyright (c) 2001 Company: @version 1.0

 */

public abstract class AbstractMap implements Map{

  protected AbstractMap()
        {
    }

    public int size()
        {
            return entrySet().size();
        }

    public boolean isEmpty()
        {
            return size()==0;
        }

    public boolean containsValue(Object value)
        {
            Iterator it=entrySet().iterator();
            while(it.hasNext())
                {
                    Map.Entry v=(Map.Entry)it.next();
                    if(value==null)
                        {
                            if(v.getValue()==null)
                                return true;
                        }
                    else
                        {
                            if(value.equals(v.getValue()))
                                return true;
                        }
                }
            return false;
        }

    public boolean containsKey(Object key) throws ClassCastException,NullPointerException
        {
            Iterator it=entrySet().iterator();
            while(it.hasNext())
                {
                    Map.Entry v=(Map.Entry)it.next();
                    if(key==null)
                        {
                            if(v.getKey()==null)
                                return true;
                        }
                    else
                        {
                            if(key.equals(v.getKey()))
                                return true;
                        }
                }
            return false;
        }

    public Object get(Object key)throws ClassCastException,NullPointerException
        {