If then else dove e come metterlo?

[php76]

Salve, sto creando un Login in Java, ma non riesco, ad inserire l'IF , che se la username e la password sono esatti, mi restiuisce ciao giampiero, altrimenti chi sei?
questo e il codice:

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JTextField;
import java.awt.*;
import java.awt.event.*;


public class login {
    public static void main (String[] args){
        JFrame frame = new JFrame("Login");
        frame.setSize(400,300);
        JPanel panel = new JPanel();
        panel.setSize(200,200);
        JLabel label = new JLabel("LOGIN");
        panel.setLayout(new GridLayout(6,2));
        JLabel label1 = new JLabel("Username");
        JTextField text = new JTextField("Username");
        JLabel label2 = new JLabel("Password");
        JTextField text1 = new JTextField("Password");
        JButton button = new JButton("Login");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.add(panel);
        panel.add(label);
        panel.add(label1);
        panel.add(text);
        panel.add(label2);
        panel.add(text1);
        panel.add(button);
        frame.setVisible(true);
        button.addActionListener(new Action());
        
    }
        }
        class Action implements ActionListener{
        public void actionPerformed (ActionEvent e){
            JFrame frame1 = new JFrame();
            frame1.setVisible(true);
            frame1.setSize(200,200);
        JLabel label = new JLabel("ciao Giampiero");
            JPanel panel = new JPanel();
            frame1.add(panel);
            panel.add(label);
            frame1.setVisible(true);
    
        }
    }