Concept Map: Periodic Table Periodic Table Elements Atoms Atomic number Atomic mass Arrangement Periods Groups Metals, non-metals, metalloids Properties Reactivity Electronegativity Ionization energy
পোস্টগুলি
- লিঙ্ক পান
- X
- ইমেল
- অন্যান্য অ্যাপ
import javax.swing.*; import java.awt.*; import java.text.SimpleDateFormat; import java.util.Date; public class DigitalClock extends JFrame { private JLabel timeLabel; public DigitalClock() { setTitle("Digital Clock"); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setSize(300, 100); // Create a label to display the time timeLabel = new JLabel(); timeLabel.setHorizontalAlignment(JLabel.CENTER); timeLabel.setFont(new Font("Arial", Font.PLAIN, 24)); // Add the label to the frame add(timeLabel); // Set up a timer to update the time every second Timer timer = new Timer(1000, e -> updateClock()); timer.start(); } private void updateClock() { // Get the current time Date now = new Date(); SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss"); String timeStr = dateFormat.format(now); // Update...