Java 示例 - 显示不同的形状

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  问题描述

  如何使用 GUI 显示不同的形状？
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  解决方案

  以下示例演示如何使用 Arc2D、Ellipse2D、Rectangle2D、RoundRectangle2D 类显示不同的形状。

  
  import java.awt.Shape;
  import java.awt.geom.*;
  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("Different shapes are created:");
     }
  }
  

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  结果

  上面的代码示例将产生以下结果。

  
  Different shapes are created.