小编use*_*075的帖子

我会坦诚相待; 这是一项家庭作业,但有人可以指导我正确的方向,并向我解释代码的某些部分应该如何工作？方向低于代码和问题.

到目前为止这是我的代码:

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Container;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Rainbow extends JPanel
{
  // Declare skyColor:
     private final Color skyColor = Color.CYAN;

  public Rainbow()
  {
    setBackground(skyColor);
  } 
  // Draws the rainbow.
  public void paintComponent(Graphics g)
  {
super.paintComponent(g);
int width = getWidth();    
int height = getHeight();

// Declare and initialize local int variables xCenter, yCenter
// that represent the center of the rainbow rings:
int xCenter = width/2;
int yCenter = (height * 3) /4; …