Java and JavaScript in the Database

Hi,

I have written the following code on Apache Netbeans IDE 22. I am working on ubuntu 18.04

class Dbconnect {
   boolean connect(){
        Connection con = null;
        System.out.println("Starts1...");
       try {
           System.out.println("Starts2...");
           Class.forName("com.mysql.cj.jdbc.Driver");
           con = DriverManager.getConnection("jdbc:mysql://localhost/ebookshop", "root", "");
           
           System.out.println("Starts3...");
           //if (!con.isClosed()){
           boolean reachable = con.isValid(10);// 10 sec
           if(con==null) {
               System.out.println("Cant connect with to MySQL server?????? ERRROR...");
               return false;
           }
           else{
               Statement stmt = con.createStatement();
               String sql = "select * from books";
               ResultSet rs = stmt.executeQuery(sql);
               String name;
               String author;
               double price;
               int qty;
               while(rs.next()){
                  name = rs.getString("title");
                  author = rs.getString("author");
                  price  = rs.getInt("price");
                  System.out.println("title ="+name+"author="+author+"price="+price);
                  
                                 
               }
               
               
           }
       } catch(Exception e) {
           //System.err.println("Exception: " + e.getMessage());
           e.printStackTrace(System.err);
       } finally {
           try {
               if (con != null){
                   con.close();
                   return true;
               }
                    
           } catch(SQLException e) {//System.err.println("Exception2: " + e.getMessage());
                                     e.printStackTrace(System.err);
           }
   }
   return false;
   }   
}

When I try to connect with the database, I am getting the following error:

Hello World!
Starts1...
Starts2...
java.sql.SQLException: Access denied for user 'root'@'localhost'
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:130)
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122)
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:819)
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:440)
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:239)
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:188)
    at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681)
    at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:229)
    at com.mycompany.db1mav.Dbconnect.connect(DB1ConnectMav.java:23)
    at com.mycompany.db1mav.DB1mav.main(DB1mav.java:16)
------------------------------------------------------------------------
BUILD SUCCESS
------------------------------------------------------------------------
Total time:  2.764 s
Finished at: 2024-06-15T10:37:38-05:00

My MySQL DB information is:

ysql> select user();
+----------------+
| user()         |
+----------------+
| root@localhost |
+----------------+
1 row in set (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| db                 |
| ebookshop          |
| menagerie          |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
7 rows in set (0.01 sec)
mysql> use ebookshop;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed

mysql> show tables;
+---------------------+
| Tables_in_ebookshop |
+---------------------+
| books               |
+---------------------+
1 row in set (0.00 sec)

Somebody please guide me.

Zulfi.