Examples of java.util.HashMap.keySet()

java.util.HashMap.keySet()
Returns a {@link Set} view of the keys contained in this map.The set is backed by the map, so changes to the map are reflected in the set, and vice-versa. If the map is modified while an iteration over the set is in progress (except through the iterator's own remove operation), the results of the iteration are undefined. The set supports element removal, which removes the corresponding mapping from the map, via the Iterator.remove, Set.remove, removeAll, retainAll, and clear operations. It does not support the add or addAll operations.

          Plot plot=(Plot)it.next();
          HashMap oldValues=plot.getAxesProperties(null, Plot.PX);
          if(plot.secondaryX!=null){
            plot.getAxesProperties(oldValues, Plot.SX);
          }
          Iterator vit=oldValues.keySet().iterator();
          while(vit.hasNext()){
            String k=(String)vit.next();
            plot.setPropertyValue(k,plot1.getPropertyValue(k));
          }
          PlotCompoundEdit ce2=plot.new PlotCompoundEdit(oldValues);

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            oldValues.put("FILL_COLOR", rectangle.getFillColor());


            addDataSource((DataSource)o);


            // Notify changes
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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            oldValues.put("TEXT", getText());
            
            setSource((DataSource) o);
            
            // Notify changes
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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            fontName = action.substring(resources.getString("Font").length() + 1);
            updateFont();
            Rectangle bounds = getBounds();
            fitBounds();
            // Notify changes
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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            fontSize = new Integer(action.substring(resources.getString("Body").length() + 1)).intValue();
            updateFont();
            Rectangle bounds = getBounds();
            fitBounds();
            // Notify changes
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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            HashMap oldValues = new HashMap();
            oldValues.put("WIDTH", getPropertyValue("WIDTH"));
            oldValues.put("HEIGHT", getPropertyValue("HEIGHT"));
            Rectangle bounds = getBounds();
            fitBounds();
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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            transform.rotEnabled = true;
            transform.rotValue = ((transform.rotValue * transform.angleUnitScale) + Math.PI / 2)
            / transform.angleUnitScale;
            setPropertyValue("TRANSFORM", transform);
            // Notify changes
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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            transform.rotEnabled = true;
            transform.rotValue = ((transform.rotValue * transform.angleUnitScale) - Math.PI / 2)
            / transform.angleUnitScale;
            setPropertyValue("TRANSFORM", transform);
            // Notify changes
            Iterator it = oldValues.keySet().iterator();
            while (it.hasNext()) {
                String n = (String) it.next();
                ce.addEdit(new PropertyChangeEdit(this, n, oldValues.get(n), getPropertyValue(n)));
            }
            ce.end();

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          sSQL = "INSERT INTO "+DB.k_bugs_changelog+" ("+DB.gu_bug+","+DB.pg_bug+","+DB.nm_column+","+DB.gu_writer+","+DB.tx_oldvalue+") VALUES (?,?,?,?,?)";
          if (DebugFile.trace) DebugFile.writeln("PreparedStatement.prepareStatement("+sSQL+")");
          PreparedStatement oWriteLog = oConn.prepareStatement(sSQL);
          oWriteLog.setString(1, getString(DB.gu_bug));
          oWriteLog.setInt   (2, getInt(DB.pg_bug));
          Iterator oIter = oLog.keySet().iterator();
          while (oIter.hasNext()) {
            String sColumnName = (String) oIter.next();
            if (!sColumnName.equalsIgnoreCase(DB.dt_modified)) {
              oWriteLog.setString(3, sColumnName);
              oWriteLog.setString(4, getStringNull(DB.gu_writer,null));

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        if (!unprocessedMappings.isEmpty())
        {
            throw new MappingsException(
                "Logical mappings cannot be initialized due to invalid inheritance: " +
                    unprocessedMappings.keySet());
        }


        logicalMappings.putAll(processedMappings);
    }

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