Q1]

DateService.java

package com.example.Dateservices;
import java.util.Date;
public class DateService 
{
	
	     public String getCurrentDate()
	 {
	        Date currentDate = new Date();
	        return "Current Date: " + currentDate.toString();
	    }

}

App.java

package com.example.services.DateService;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class App 
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );
        
        ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");

     
        com.example.services.DateService.DateService dateService = (com.example.services.DateService.DateService) context.getBean("DateService");

      
        System.out.println(dateService.getCurrentDate());

      
        ((ClassPathXmlApplicationContext) context).close();
        
        
    }
}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="DateService" class="com.example.services.DateService.DateService"/>

</beans>


Q2]

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.sql.*;

public class StudentRecordDisplay extends JFrame {
    private JTextField rnoField, snameField, perField;
    private JButton displayButton;

    public StudentRecordDisplay() {
        setTitle("Student Record Display");
        setSize(300, 150);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new JPanel(new GridLayout(4, 2));

        JLabel rnoLabel = new JLabel("Roll Number:");
        rnoField = new JTextField();
        rnoField.setEditable(false);
        panel.add(rnoLabel);
        panel.add(rnoField);

        JLabel snameLabel = new JLabel("Student Name:");
        snameField = new JTextField();
        snameField.setEditable(false);
        panel.add(snameLabel);
        panel.add(snameField);

        JLabel perLabel = new JLabel("Percentage:");
        perField = new JTextField();
        perField.setEditable(false);
        panel.add(perLabel);
        panel.add(perField);

        displayButton = new JButton("Display Record");
        displayButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                displayRecord();
            }
        });
        panel.add(displayButton);

        add(panel);
        setVisible(true);
    }

    private void displayRecord() {
        Connection conn = null;
        Statement stmt = null;
        ResultSet rs = null;

        try {
            Class.forName("com.mysql.jdbc.Driver");
            conn = DriverManager.getConnection(("jdbc:postgresql:database-name:postgres:password));

            stmt = conn.createStatement();
            rs = stmt.executeQuery("SELECT * FROM student LIMIT 1");

            if (rs.next()) {
                rnoField.setText(rs.getString("RNo"));
                snameField.setText(rs.getString("SName"));
                perField.setText(rs.getString("Per"));
            } else {
                JOptionPane.showMessageDialog(this, "No records found in the student table.");
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        } finally {
            try {
                if (rs != null) rs.close();
                if (stmt != null) stmt.close();
                if (conn != null) conn.close();
            } catch (SQLException ex) {
                ex.printStackTrace();
            }
        }
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            new StudentRecordDisplay();
        });
    }
}