VERIFIED PASSWORD and USER NAME in Java SE

String user="";
String pwd="";
user = JOptionPane.showInputDialog("Masukkan username anda : ");
pwd = JOptionPane.showInputDialog("Masukkan password anda: ");
String msg = "Welcome to java programming language, " + user + " !";
String msg2 = " Verfikasi password anda: " + "password anda = "+pwd;
JOptionPane.showMessageDialog(null, msg);
JOptionPane.showMessageDialog(null, msg2);