Insert data into data base using java

import java.sql.*;
import java.io.*;
class InsertTest
{
   
public static void main(String a[])throws Exception
{
    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
   
   
   
    System.out.println("Enter the student name:");
    String name=br.readLine();
   
    System.out.println("Enter the course");
    String course=br.readLine();
   
   
    Class.forName("oracle.jdbc.driver.OracleDriver");
    Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","system","krishna");
    Statement st=con.createStatement();
    int result=st.executeUpdate("insert into xyz2 values('"+name+"','"+course+"')");
   
    //result=st.getUpdateCount();
    if(result>0)
    {
   
    System.out.println( "Successfully inserted");
    }

else
    {
    System.out.println("Insertion failed!");
    }
}
}