SQL DML (2-tier) java JDBC MySQL (2-tier) program to implement at least two MySQL queries (with and without using WHERE clause)

package a1;
import java.sql.*;
import java.lang.*;
public class JDBCDemo {
 // JDBC driver name and database URL
  static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
  static final String DB_URL = "jdbc:mysql://10.5.7.51:3306/te25_db";

  //  Database credentials
  static final String USER = "te25";
  static final String PASS = "student";
 
public static void main(String[] args) {
// TODO Auto-generated method stub

Connection conn = null;
  Statement stmt = null;
  try{
     //STEP 2: Register JDBC driver
     Class.forName(JDBC_DRIVER);

     //STEP 3: Open a connection
     System.out.println("Connecting to database...");
     conn = DriverManager.getConnection(DB_URL,USER,PASS);
     System.out.println("connected to database successfully");
     //STEP 4: Execute a query
     System.out.println("Creating statement...");
     stmt = conn.createStatement();
     String sql;
     sql="select * from STUDENTS";
System.out.println("Query:  "+sql);
ResultSet rs=stmt.executeQuery(sql);
System.out.println("RESULT:");
System.out.println("Roll_no.\tStudentName\tMajor\t\tInstitute\t\tGPA\n");
while(rs.next())  {
int id=rs.getInt("StudentID");
String name=rs.getString("StudentName");
String major=rs.getString("Major");
int gpa=rs.getInt("GPA");
int tutid=rs.getInt("TutorID");

System.out.print(+id);
System.out.print("\t\t"+name);
System.out.print("\t\t"+major);
System.out.print("\t\t"+gpa);
System.out.print("\t\t"+tutid);
System.out.println();
     }
   
     //STEP 6: Clean-up environment
     rs.close();
     stmt.close();
     conn.close();
  }catch(SQLException se){
     //Handle errors for JDBC
   


se.printStackTrace();
  }catch(Exception e){
     //Handle errors for Class.forName
     e.printStackTrace();
  }
  System.out.println("\n\nGoodbye!");
}//end main
}//end FirstExample


***********OUTPUT****************************************

Connecting to database...
connected to database successfully
Creating statement...
Query:  select * from STUDENTS
RESULT:
Roll_no. StudentName Major Institute GPA

101 Bill CIS 3 102
102 Mary CIS 3 0
103 Sue Marketing 4 102
104 Tom Finance 4 106
105 Alex CIS 3 106
106 Sam Marketing 4 102
107 Jane Finance 3 102


Goodbye!