aswdadwadwa

  //STEP 1. Import required packages
    import java.sql.*;

    public class DBConnect {
       // JDBC driver name and database URL
       static final String JDBC_DRIVER = "org.postgresql.Driver";
       static final String DB_URL = "jdbc:postgresql://localhost:5432/postgres";

       //  Database credentials
       static final String USER = "postgres";
       static final String PASS = "postgres";

       public static void main(String[] args) {
       Connection conn = null;
       Statement stmt = null;
       try{
          //STEP 2: Register JDBC driver
          Class.forName("org.postgresql.Driver");

          //STEP 3: Open a connection
          System.out.println("Connecting to a selected database...");
          conn = DriverManager.getConnection(DB_URL, USER, PASS);
          System.out.println("Connected database successfully...");

          //STEP 4: Execute a query
          System.out.println("Inserting records into the table...");
          stmt = conn.createStatement();

          String sql = "INSERT INTO Registration " +
                       "VALUES (100, 'Zara', 'Ali', 18)";
          stmt.executeUpdate(sql);
          sql = "INSERT INTO Registration " +
                       "VALUES (101, 'Mahnaz', 'Fatma', 25)";
          stmt.executeUpdate(sql);
          sql = "INSERT INTO Registration " +
                       "VALUES (102, 'Zaid', 'Khan', 30)";
          stmt.executeUpdate(sql);
          sql = "INSERT INTO Registration " +
                       "VALUES(103, 'Sumit', 'Mittal', 28)";
          stmt.executeUpdate(sql);
          System.out.println("Inserted records into the table...");

       }catch(SQLException se){
          //Handle errors for JDBC
          se.printStackTrace();
       }catch(Exception e){
          //Handle errors for Class.forName
          e.printStackTrace();
       }finally{
          //finally block used to close resources
          try{
             if(stmt!=null)
                conn.close();
          }catch(SQLException se){
          }// do nothing
          try{
             if(conn!=null)
                conn.close();
          }catch(SQLException se){
             se.printStackTrace();
          }//end finally try
       }//end try
       System.out.println("Goodbye!");
    }//end main
    }//end JDBCExample