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Java Graphics - 如何創(chuàng)建基本形狀

我們想知道如何創(chuàng)建基本形狀。 
 

import java.awt.Shape;
import java.awt.geom.Arc2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Line2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;

public class Main {

  public static void main(String[] args) {
    int x1 = 1, x2 = 2, w = 3, h = 4, x = 5, y = 6, y1 = 1, y2 = 2, start = 3;
    Shape line = new Line2D.Float(x1, y1, x2, y2);
    Shape arc = new Arc2D.Float(x, y, w, h, start, 1, 1);
    Shape oval = new Ellipse2D.Float(x, y, w, h);
    Shape rectangle = new Rectangle2D.Float(x, y, w, h);
    Shape roundRectangle = new RoundRectangle2D.Float(x, y, w, h, 1, 2);
    
    System.out.println("done");
  }
}