/** * Title:        <p> * Description:  <p> * Copyright:    Copyright (c) <p> * Company:      <p> * @author * @version 1.0 */import javax.swing.*;import java.awt.*;public class GraphPanel extends java.awt.Canvas { // JPanel {  public GraphPanel(float [] data) {    super();    this.data = data;  }  Color black = new Color(0, 0, 0);  float [] data;  public void paint(Graphics g) {    if (data == null) return;    int width = this.getWidth();    int height = this.getHeight();    System.out.println("height="+height);    float min = 99999999.9f;    float max = -min;    int maxindex = 0;    float maxval = 0.0f;    for (int i=0; i<data.length; i++) {      if (min > data[i]) min = data[i];      if (max < data[i]) {        max = data[i];        maxindex = i;        maxval = max;      }    }    System.out.println("min=" + min +", max=" + max +                       ", max index="+maxindex + ", max val="+maxval);    g.setColor(black);    for (int i=0; i<data.length - 1; i++) {      float y1 = height - 5 - 0.95f *height * ((data[i] - min)  / (max - min));      float y2 = height - 5 - 0.95f *height * ((data[i+1] - min)  / (max - min));      //System.out.println("data["+i+"]="+data[i]+", y1="+y1+", y2="+y2);      g.drawLine(i+20, (int)y1, i+21, (int)y2);    }    float yzero = height - 5 - 0.95f *height * ((0.0f - min)  / (max - min));    g.drawLine(20, (int)yzero, data.length + 19, (int)yzero);  }}