chartframe.java

一个出售卡片信息的源码 是我的一个作业

import java.awt.*;
import javax.swing.*;
import java.awt.Font;
import java.util.Random;

public class ChartFrame
    extends JPanel {

	private static final long serialVersionUID = 1L;


  private static int numY = 10;

  private static int numX = 4;

  private static int height = 180;

  private static int width = 200;

  private static int x边距 = 50;

  private static int y边距 = 10;

  private static int labelHeight = 20;

  private static int labelWidth = 40;

  private String[] cardsCode;

  public ChartFrame() throws Exception {

    numX = CardList.getSize();
    cardsCode = new String[numX];
    for (int i = 0; i < numX; i++) {
      cardsCode[i] = CardList.getCard(i).getId();
    }
    原点x = this.getX() + 50;
    原点y = this.getY() + width - 10;
    jbInit();
  }

  private static int 原点x;
  private static int 原点y;
  private int labelX;
  private JLabel title = new JLabel("Cards Sold");
  private Font font = new Font("Default", Font.PLAIN, 9);

  public void paint(Graphics g) {
    super.paint(g);
    g.drawLine(getX() + x边距, getY() + y边距, 原点x, 原点y);
    g.drawLine(原点x, 原点y, getX() + x边距 + width,
               getY() + y边距 + height);
    for (int i = 0; i < numX; i++) {
      Random rand = new Random();
      g.setColor(new Color(rand.nextInt()));
      if (SaleList.contains(cardsCode[i])) {
        g.fillRect(原点x + labelX * (1 + 3 * i), 原点y -
                   height * SaleList.getSaleQuantity(cardsCode[i]) / 100,
                   labelX * 2,
                   height * SaleList.getSaleQuantity(cardsCode[i]) / 100);
      }
    }
  }

  private void jbInit() throws Exception {
    this.setLayout(null);
    this.setVisible(true);
    for (int i = 0; i <= numY; i++) {
      Rectangle r = new Rectangle(x边距 - 22, (原点y - 10) - height / numY * i,
                                  labelWidth, labelHeight);
      JLabel num = createLabel(i * 10 + "", r);
      this.add(num);
    }

    for (int i = 0; i < numX; i++) {
      int n = 1;
      if (numX != 0) {
        n = numX * 3;
        labelX = width/ n;
        Rectangle r = new Rectangle(原点x + labelX * (1 + 3 * i), 原点y + 10,
                                    labelX * 3, labelHeight);
        JLabel num = createLabel(cardsCode[i], r);
        num.setFont(font);
        this.add(num);
      }
      else {
        throw new Exception("没有贺卡");
      }

    }
    title.setFont(new java.awt.Font("Default", Font.PLAIN, 9));
    title.setBounds(new Rectangle(this.getX() + width / 2,
                                  this.getY() + height + 50, 94, 22));
    this.add(title);
  }

  /**
   * createButton
   * @param string String
   * @param rectangle Rectangle
   */
  private JLabel createLabel(String string, Rectangle rectangle) {
    JLabel jb = new JLabel();
    jb.setText(string);
    jb.setBounds(rectangle);
    return jb;
  }
}