How do I draw various shapes in Java ? Which library should I use? [closed]

问题

I want to write a program which can draw any type of shape that I assign to it like

Circle
Square
Rectangle

Which library should I use , and how do I go about it in Java ?

I am a python coder , thus finding it difficult to cope with Java .

回答1:

Sure you can do that using Swing. You may want to look into Java's Shape library for that.

Alternatively you can simply override the Component's paint method as shown below.

import javax.swing.*;
import java.awt.*;

public class ShapeTest extends JFrame{
     public ShapeTest(){
          setSize(400,400);
          setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          setLocationRelativeTo(null);
          setVisible(true);
     }

     public static void main(String a[]){
         new ShapeTest();
     }

     public void paint(Graphics g){
          g.drawOval(40, 40, 60, 60); //FOR CIRCLE
          g.drawRect(80, 30, 200, 200); // FOR SQUARE
          g.drawRect(200, 100, 100, 200); // FOR RECT
     }
}

回答2:

The Java2D API has what you are looking for.

回答3:

Check out Custom Painting Approaches for a couple of ideas. The DrawOnComponent is closer to what you want. It would need to be changed to add your custom shape objects to the list.

回答4:

GraphPanel is a simple example of an object drawing program that features moveable, resizable, colored nodes connected by edges.

回答5:

Java 2D is what you neede drawing graphics (i.e., draw colored rectangles, circles, lines, and animate them).

来源：https://stackoverflow.com/questions/4578835/how-do-i-draw-various-shapes-in-java-which-library-should-i-use

标签

java

swing

drawing

shapes