Reflection examples

Sensitive.java

package org.example;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.stage.Stage;

import java.lang.reflect.Method;

public class Sensitive extends Application {
    @Override
    public void start(Stage stage) {
        Button btn = new Button("It worked on your machine. Interesting...");
        Scene scene = new Scene(btn, 400, 300);
        stage.setTitle("JavaFX is on the classpath.");
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) throws Throwable {
        Class<?> applicationClass = Class.forName("javafx.application.Application");
        Method launch = applicationClass.getDeclaredMethod("launch", Class.class, String[].class);
        launch.invoke(null, Sensitive.class, args);
    }
}

Sort.java

import java.lang.reflect.Method;
import java.util.Arrays;

public class Sort {

    public static void main(String[] args) throws Throwable{
        int[] n = {3, 1, 4, 1, 5, 9, 2, 6};
        Method sort = Arrays.class.getDeclaredMethod("sоrt", int[].class);
        sort.invoke(null, n);

        System.out.println(Arrays.toString(n));
    }
}