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feat (call/factory): new factory method example with components
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‎README.md‎

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@@ -8,7 +8,7 @@ Todos os exemplos no diretório `notebook` são preparados para o ambiente Jupyt
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## Abrir branch específico em uma instância do [binderhub](https://github.com/jupyterhub/binderhub)
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* Última versão testada e estável:
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[![launch @ mybinder.org][badge-jupyterlab-mybinder-org]](https://mybinder.org/v2/gh/santanche/java2learn/v1.1.5)
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[![launch @ mybinder.org][badge-jupyterlab-mybinder-org]](https://mybinder.org/v2/gh/santanche/java2learn/v1.1.6)
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* Última versão disponível:
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[![launch @ mybinder.org][badge-jupyterlab-mybinder-org]](https://mybinder.org/v2/gh/santanche/java2learn/master)

‎src/java/src/pt/c04gui/s20chart/XYChart02.java‎

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package pt.c04gui.s20chart;
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import java.awt.Color;
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import java.util.ArrayList;
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import java.util.List;
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import org.knowm.xchart.SwingWrapper;
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import org.knowm.xchart.XYChart;
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import org.knowm.xchart.XYChartBuilder;
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import org.knowm.xchart.XYSeries;
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import org.knowm.xchart.XYSeries.XYSeriesRenderStyle;
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import org.knowm.xchart.style.markers.SeriesMarkers;
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public class XYChart02 {
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public static void main(String[] args) {
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XYChart02 exampleChart = new XYChart02();
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XYChart chart = exampleChart.getChart();
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new SwingWrapper<XYChart>(chart).displayChart();
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}
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public XYChart getChart() {
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// Create Chart
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XYChart chart = new XYChartBuilder().width(800).height(600).title("Line Chart").xAxisTitle("X").yAxisTitle("Y").build();
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// Customize Chart
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chart.getStyler().setDefaultSeriesRenderStyle(XYSeriesRenderStyle.Line);
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chart.getStyler().setChartTitleVisible(false);
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chart.getStyler().setLegendVisible(false);
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chart.getStyler().setAxisTitlesVisible(false);
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chart.getStyler().setXAxisDecimalPattern("0.0000000");
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// Series
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int size = 10;
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List<Double> xData = new ArrayList<Double>();
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List<Double> yData = new ArrayList<Double>();
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for (int i = 0; i <= size; i++) {
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xData.add(((double) i) / 1000000);
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yData.add(10 * Math.exp(-i));
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}
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XYSeries series = chart.addSeries("10^(-x)", xData, yData);
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series.setMarkerColor(Color.RED);
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series.setMarker(SeriesMarkers.SQUARE);
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return chart;
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}
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}

‎src/java/src/pt/c06patterns/factory/s10components/App05ChartSequence.java‎

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package pt.c06patterns.factory.s10components;
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import java.util.Scanner;
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import pt.c06patterns.factory.s10components.chart.BarChartFactory;
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import pt.c06patterns.factory.s10components.chart.IBarChart;
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import pt.c06patterns.factory.s10components.chart.exception.PlotException;
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import pt.c06patterns.factory.s10components.sequence.IMathSequenceRatio;
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import pt.c06patterns.factory.s10components.sequence.MathSequenceFactory;
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public class App05ChartSequence {
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public static void main(String args[]) {
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System.out.print("Progression type (arithmetic or geometric): ");
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Scanner keyboard = new Scanner(System.in);
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String sequenceType = keyboard.nextLine();
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System.out.print("Chart type (console ou graphic): ");
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String chartType = keyboard.nextLine();
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keyboard.close();
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IMathSequenceRatio gp = MathSequenceFactory.createSequenceRatio(sequenceType);
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gp.setInitial(1);
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gp.setRatio(2);
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try {
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IBarChart bcg = BarChartFactory.create(chartType);
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bcg.setFilled(true);
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bcg.setN(7);
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bcg.connect(gp);
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bcg.plot();
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} catch (PlotException error) {
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System.err.println("*** Error: " + error.getMessage());
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}
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}
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/BarChart.java‎

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package pt.c06patterns.factory.s10components.chart;
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import pt.c06patterns.factory.s10components.sequence.ISequence;
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public abstract class BarChart implements IBarChart {
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protected boolean filled;
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protected int n;
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protected ISequence sequence;
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public BarChart() {
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filled = true;
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n = 3;
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}
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public boolean isFilled() {
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return filled;
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}
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public void setFilled(boolean filled) {
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this.filled = filled;
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}
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public int getN() {
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return n;
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}
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public void setN(int n) {
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this.n = n;
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}
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public void connect(ISequence sequence) {
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this.sequence = sequence;
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}
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public abstract void plot();
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/BarChartFactory.java‎

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package pt.c06patterns.factory.s10components.chart;
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public class BarChartFactory {
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public static IBarChart create(String type) {
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IBarChart chart = null;
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if (type.equalsIgnoreCase("console"))
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chart = new ConsoleBarChart();
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else if (type.equalsIgnoreCase("graphic"))
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chart = new GraphicBarChart();
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return chart;
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}
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/ConsoleBarChart.java‎

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package pt.c06patterns.factory.s10components.chart;
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import pt.c06patterns.factory.s10components.chart.exception.InvalidBlankChar;
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import pt.c06patterns.factory.s10components.chart.exception.UnsupportedNegativeNumber;
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public class ConsoleBarChart extends BarChart {
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private char character;
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public ConsoleBarChart() {
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super();
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character = '*';
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}
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public char getCharacter() {
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return character;
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}
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public void setCharacter(char character) throws InvalidBlankChar {
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if (character == ' ')
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throw new InvalidBlankChar("the chart does not support blank character");
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this.character = character;
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}
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public void plot() {
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if (sequence != null) {
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int value = sequence.first();
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for (int s = 1; s <= n; s++) {
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if (value > 0) {
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for (int v = 1; v < value; v++)
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System.out.print((filled) ? character : ' ');
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System.out.print(character);
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} else if (value < 0) {
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System.out.println("?");
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throw new UnsupportedNegativeNumber("the chart does not support a negative number");
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}
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System.out.println();
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value = sequence.next();
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}
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}
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}
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/GraphicBarChart.java‎

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package pt.c06patterns.factory.s10components.chart;
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import java.util.ArrayList;
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import java.util.List;
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import org.knowm.xchart.CategoryChart;
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import org.knowm.xchart.CategoryChartBuilder;
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import org.knowm.xchart.SwingWrapper;
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public class GraphicBarChart extends BarChart {
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public void plot() {
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// Create Chart
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CategoryChart chart =
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new CategoryChartBuilder().width(800).height(600).
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title("Chart").xAxisTitle("X").yAxisTitle("Y").build();
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// Customize Chart
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chart.getStyler().setChartTitleVisible(false);
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chart.getStyler().setLegendVisible(false);
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chart.getStyler().setAxisTitlesVisible(false);
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chart.getStyler().setXAxisDecimalPattern("0");
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// Series
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List<Integer> xData = new ArrayList<Integer>();
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List<Integer> yData = new ArrayList<Integer>();
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if (sequence != null) {
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int value = sequence.first();
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for (int s = 1; s <= n; s++) {
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xData.add(s);
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yData.add(value);
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value = sequence.next();
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}
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}
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chart.addSeries("series", xData, yData);
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new SwingWrapper<CategoryChart>(chart).displayChart();
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}
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/IBarChart.java‎

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package pt.c06patterns.factory.s10components.chart;
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public interface IBarChart
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extends IChart, IRSequence, IBarChartProperties {
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/IBarChartProperties.java‎

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package pt.c06patterns.factory.s10components.chart;
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public interface IBarChartProperties {
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public boolean isFilled();
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public void setFilled(boolean filled);
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public int getN();
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public void setN(int n);
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}

‎src/java/src/pt/c06patterns/factory/s10components/chart/IChart.java‎

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package pt.c06patterns.factory.s10components.chart;
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public interface IChart {
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public void plot();
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}

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