Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class Main {
    public static void main(String args[]) {
        JFrame frame = new JFrame();
        FieldComponent golfgame = new FieldComponent();
        ((Component) golfgame).setFocusable(true);
        frame.getContentPane().add(golfgame);
        frame.pack();
        frame.setVisible(true);
    }
}

class FieldComponent extends JPanel {
    int width = 1000;
    int height = 800;
    int time;

    public FieldComponent() {
        this.time = 1200;
        this.setPreferredSize(new Dimension(width, height));
    }

    @Override
    protected void paintComponent(Graphics window) {
        super.paintComponent(window);
        Graphics2D twoDGraph = (Graphics2D) window;
        if (time % 2 == 0) {
            twoDGraph.setColor(Color.RED);
        } else {
            twoDGraph.setColor(Color.GREEN);
        }
        twoDGraph.fillOval(100, 100, 600, 600);
        time++;
    }
}