使用System.exit(0)

public class Main {
    public static void main(String[] args) {
        System.out.println("Application is running...");

        // Perform some operations
        // ...

        // Exit the application with status code 0
        System.exit(0);

        // This line will not be executed
        System.out.println("This will not be printed.");
    }
}

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Button Content="Exit" Click="ExitButton_Click" HorizontalAlignment="Center" VerticalAlignment="Center"/>
    </Grid>
</Window>

using System.Windows;

namespace WpfApp
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void ExitButton_Click(object sender, RoutedEventArgs e)
        {
            // Close the application
            Application.Current.Shutdown();
        }
    }
}