Java: Connection Class Error [closed]

Fixed. Just import:

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

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
// Eventoos do Botao inserir
try {
    //Registra JDBC driver
    Class.forName("com.mysql.jdbc.Driver");

    //Abrindo a conexão: ATENÇÃO OS DOIS PARÂMETROS VAZIOS("") SÃO USUÁRIO E SENHA, RESPECTIVAMENTE.
    Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/escola?zeroDateTimeBehavior=convertToNull", "usuario_banco", "senha_banco");

    //Executa a query de inserção
    //java.sql.Statement st = conn.createStatement();
    //st.executeUpdate("INSERT INTO aluno (id,nome,cpf) VALUES (" + this.jTextFieldId.getText() + ",'"+ this.jTextFieldNome.getText() + "','"+ this.jTextFieldCPF.getText() + "')");

    PreparedStatement pstmStatement = conn.prepareStatement("INSERT INTO aluno  VALUES  ( ? , ?  , ? ) ");// id , nome, cpf 

    pstmStatement.setInt(1, this.jTextFieldId.getText() ); //this.jTextFieldId.getText()

    pstmStatement.setString(2, this.jTextFieldNome.getText() ); // this.jTextFieldNome.getText()

    pstmStatement.setString(3,  this.jTextFieldCPF.getText() ); // this.jTextFieldCPF.getText()

    pstmStatement.executeUpdate(); //executa o SQL 


    JOptionPane.showMessageDialog(rootPane, "Aluno inserido");//

} catch (SQLException | ClassNotFoundException e) {

    JOptionPane.showMessageDialog(rootPane, e);

}//Fim try

}