Graph

import javax.swing.*;
import java.awt.*;


public class Graph extends JPanel {
private final int GRAPH_WIDTH = 200;
private final int GRAPH_HEIGHT= 180;

private Color graphColor = Color.GRAY;

private double X[];
private double Y[];
private boolean graphEnabled = false;

public Graph(Color color)
{
graphColor = color;
this.setPreferredSize(new Dimension(GRAPH_WIDTH, GRAPH_HEIGHT));
}

public void setX(double[] value) {
X = value;
}

public void setY(double[] value) {
Y = value;
}

public void enableGraph(boolean value) {
graphEnabled = value;
}

@Override
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D) g;
super.paintComponent(g2);

if (graphEnabled) {
g2.setStroke(new BasicStroke(2.0f));
g2.setColor(graphColor);

Point lastPoint = new Point((int) (X[0] * GRAPH_WIDTH), GRAPH_HEIGHT - (int) (Y[0] * GRAPH_HEIGHT));
for (int i = 0; i < X.length; i++) {
Point nextPoint = new Point((int) (X[i] * GRAPH_WIDTH), GRAPH_HEIGHT - (int) (Y[i] * GRAPH_HEIGHT));
g2.drawLine(lastPoint.x, lastPoint.y, nextPoint.x, nextPoint.y);
lastPoint = nextPoint;
}
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

g2.setFont(new Font("SansSerif", Font.PLAIN, 12));
g2.drawString(this.getName(), 10, 10);
}
setBounds(getX(), getY(), GRAPH_WIDTH, GRAPH_HEIGHT);

}
}