Android Test

java.java

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        colorClass = new ColorClass();
        factClass = new FactClass();
        layout = findViewById(R.id.relativeLayout);
        txt = findViewById(R.id.textFact);
        btn = findViewById(R.id.btn);