我必須將此程序中的正方形轉換爲使用fillPolygon方法在新類中的「杯子」,但不能爲我的生活弄清楚這一點。我必須在每邊減少5的頂部寬度。我在搜索中找到的所有東西都向我展示瞭如何製作三角形或更復雜的形狀,但沒有像這種形狀。任何援助將不勝感激。這是變化後的樣子。如何使用fillPolygon將正方形轉換爲
package cs520.hw4.part1;
import javax.swing.JFrame;
import java.awt.Color;
import java.awt.Graphics;
@SuppressWarnings("serial")
public class Cups1 extends JFrame{
int startX, startY, cupWidth, cupHeight;
int baseLength;
int cupSpacing;
public Cups1()
{
super("My Squares");
startX = 100;
startY = 300;
cupWidth = 25;
cupHeight = 40;
baseLength = 7;
cupSpacing = 6;
}
public void paint(Graphics g)
{
super.paint(g);
for (int row = 0; row < baseLength; row++) {
for (int col = 0; col < (baseLength - row); col++)
{
if ((row) % 2 == 0){
g.setColor(Color.RED);}
else
g.setColor(Color.BLUE);
g.fillRect(startX + (row * ((cupWidth + cupSpacing)/2)) + (col * (cupSpacing + cupWidth)), startY - row*cupHeight, cupWidth, cupHeight);
}
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args)
{
Cups1 app = new Cups1();
app.setSize(550,550);
app.setVisible(true);
app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
事情是怎麼回事?你做了嗎?你需要更多的幫助嗎? – strash