Source Code : Paint a calendar

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Paint a calendar

    

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

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

public class Main extends JPanel {
  SimpleDateFormat month = new SimpleDateFormat("MMMM");
  SimpleDateFormat year = new SimpleDateFormat("yyyy");
  SimpleDateFormat day = new SimpleDateFormat("d");
  Date date = new Date();

  public void setDate(Date date) {
    this.date = date;
  }
  public void paintComponent(Graphics g) {
    ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
    g.fillRect(0, 0, getWidth(), getHeight());
    g.setColor(Color.black);
    g.drawString(month.format(date), 34, 36);
    g.setColor(Color.white);
    g.drawString(year.format(date), 235, 36);

    Calendar today = Calendar.getInstance();
    today.setTime(date);
    Calendar cal = Calendar.getInstance();
    cal.setTime(date);
    cal.set(Calendar.DATE, 1);
    cal.add(Calendar.DATE, -cal.get(Calendar.DAY_OF_WEEK) + 1);
    for (int week = 0; week < 6; week++) {
      for (int d = 0; d < 7; d++) {
        Color col = Color.black;
          g.drawString(day.format(cal.getTime()), d * 30 + 46 + 4,
              week * 29 + 81 + 20);
        cal.add(Calendar.DATE, +1);
      }
    }
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.setPreferredSize(new Dimension(300, 280));

    Main ch = new Main();
    ch.setDate(new Date());
    frame.getContentPane().add(ch);
    frame.setUndecorated(true);

    frame.pack();
    frame.setVisible(true);
  }
}

   
    
    
    
  

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