Java Update data in Oracle Database (JDBC)

Statement s = connect.createStatement();

String sql = "UPDATE customer " +
	"SET BUDGET = '5000000' " +
	" WHERE CUSTOMERID = 'C005' ";

s.execute(sql);

package com.java.myapp;

import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Connection;
import java.sql.DriverManager;

public class MyClass {

	public static void main(String[] args) {
		
		Connection connect = null;
		Statement s = null;
		
		try {
			Class.forName("oracle.jdbc.driver.OracleDriver");
			connect =  DriverManager.getConnection("" +
					"jdbc:oracle:thin:@TCDB", "myuser","mypassword");
			
			s = connect.createStatement();
			
			String sql = "UPDATE customer " +
					"SET BUDGET = '5000000' " +
					" WHERE CUSTOMERID = 'C005' ";
             s.execute(sql);
            
             System.out.println("Record Update Successfully");
             
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		try {
			s.close();
			connect.close();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}
	
}