java 如何在 JFrame 中创建画布并绘制一些基本形状？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12139307/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to create a canvas inside JFrame and draw a few basic shapes?
提问by Denis Marson
I am new to java and created my own window frame. Now i just need to draw few graphics shapes into it.
我是 Java 新手并创建了自己的窗口框架。现在我只需要在其中绘制一些图形形状。
import javax.swing.JFrame;
public class run {
public static void main(String[] args) {
JFrame frame = new JFrame();
int resx = 400,resy = 400;
frame.setSize(resx,resy);
frame.setLocationRelativeTo(null);
frame.setTitle("Mover");
frame.setResizable(false);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
回答by MadProgrammer
Well, you could start with 2D Graphcs Trail
好吧，你可以从2D Graphcs Trail开始
I'd also use a JComponentor JPanelinstead of Canvas
我也会使用JComponent或JPanel代替Canvas
回答by Vinay
Find more about paint here.
在此处了解有关油漆的更多信息。
A simple example is below.
下面是一个简单的例子。
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class SimpleDrawing extends JFrame {
public SimpleDrawing() {
setSize(new Dimension(500, 500));
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public void paint(Graphics g) {
g.setColor(Color.red);
g.fillOval(20, 50, 100, 100);
g.setColor(Color.blue);
g.fillRect(100, 100, 100, 200);
}
public static void main(String arg[]) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
new SimpleDrawing();
}
});
}
}
Go through the paint method in the code.
遍历代码中的paint方法。
