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package deflektor;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import javax.swing.JFrame;

import javax.swing.JPanel;

public class ZkouskaRotaci extends JPanel{

public static void main(String[] args)

{

JFrame f = new JFrame();

f.add(new ZkouskaRotaci());

f.setSize(900, 600);

f.setBackground(Color.WHITE);

f.setVisible(true);

f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

static double i = 0;

@Override

public void paintComponent(Graphics g)

{

g.clearRect(0, 0, 900, 600);

Graphics2D g2d = (Graphics2D)g;

g2d.setColor(Color.BLUE);

Rectangle rect2 = new Rectangle(300, 200, 20, 20);

g2d.translate(300 + rect2.width / 2, 200 + rect2.height / 2);

g2d.rotate(i += 0.01);

g2d.translate(-(300 + rect2.width / 2), -(200 + rect2.height / 2));

//g2d.rotate(Math.toRadians(45));

g2d.draw(rect2);

g2d.fill(rect2);

repaint();

}

}