Boa noite,
estou entrando nesse mundo chamado java e estou cheio de dúvidas. 
mas a principio, estou começando a fazer um programinha de locadora para aprender a programar em java, e estava em duvida de como eu faço a minha class splash fazer uma conexão com a minha classe conexão_banco de dados e chamar e testar a conexão para executar e exibir na tela splash.
Essa é minha tela splash (Descupla o lixo é por que eu estou fazendo em netbeans JFrame)
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package Login;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
*
* @author michael
*/
public class Splash extends javax.swing.JFrame {
/**
* Creates new form Splash
*/
public Splash() {
initComponents();
new Thread(){
public void run(){
for(int i=0; i<=100;i++){
try {
sleep(60);
jProgressBar1.setValue(i);
if(jProgressBar1.getValue() <=20)
{
jLabel5.setText("Carregando Banco de Dados");
}
else if(jProgressBar1.getValue() <=40)
{
jLabel5.setText("Carregando Tabelas");
}
else if(jProgressBar1.getValue() <= 95)
{
jLabel5.setText("Carregado Sistema");
}
else {
jLabel5.setText("Carregado com Sucesso");
}
} catch (InterruptedException ex) {
Logger.getLogger(Splash.class.getName()).log(Level.SEVERE, null, ex);
}
}
new Login().setVisible(true);
Splash.this.dispose();
}
}.start();
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
jLabel4 = new javax.swing.JLabel();
jProgressBar1 = new javax.swing.JProgressBar();
jLabel5 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(new java.awt.Color(255, 255, 255));
setForeground(java.awt.Color.white);
setResizable(false);
getContentPane().setLayout(new org.netbeans.lib.awtextra.AbsoluteLayout());
jLabel1.setFont(new java.awt.Font("Dialog", 1, 14)); // NOI18N
jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
jLabel1.setText("System Loc - Sistema de Locação");
getContentPane().add(jLabel1, new org.netbeans.lib.awtextra.AbsoluteConstraints(4, 10, 440, -1));
jLabel2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/Login/Splash2.png"))); // NOI18N
getContentPane().add(jLabel2, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 35, -1, 144));
jLabel3.setText("Versão: 1.0.0");
getContentPane().add(jLabel3, new org.netbeans.lib.awtextra.AbsoluteConstraints(257, 185, -1, -1));
jLabel4.setFont(new java.awt.Font("Dialog", 1, 8)); // NOI18N
jLabel4.setText("Produzido por TopInfor Informatica");
getContentPane().add(jLabel4, new org.netbeans.lib.awtextra.AbsoluteConstraints(257, 206, -1, -1));
jProgressBar1.setFont(new java.awt.Font("Dialog", 0, 8)); // NOI18N
jProgressBar1.setStringPainted(true);
getContentPane().add(jProgressBar1, new org.netbeans.lib.awtextra.AbsoluteConstraints(0, 224, 450, -1));
getContentPane().add(jLabel5, new org.netbeans.lib.awtextra.AbsoluteConstraints(10, 200, -1, -1));
pack();
setLocationRelativeTo(null);
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Splash.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Splash.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Splash.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Splash.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Splash().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JProgressBar jProgressBar1;
// End of variables declaration
}
esse é a minha classe conexão com o banco de dados
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package conexao.bd;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
/**
*
* @author michael
*/
public class CriaConexao {
public static Connection getConexao() throws SQLException {
try {
Class.forName("com.mysql.jdbc.Driver");
System.out.println("Conectando ao Banco de Dados");
return DriverManager.getConnection("jdbc:mysql://localhost/sysloc_db", "root", "2010cleide");
} catch (ClassNotFoundException e) {
throw new SQLException(e.getMessage());
}
}
}