How to Hide Home And Back Button in Android Studio

private void hideSystemBars() {
    WindowInsetsControllerCompat windowInsetsController =
            ViewCompat.getWindowInsetsController(getWindow().getDecorView());
    if (windowInsetsController == null) {
        return;
    }
    // Configure the behavior of the hidden system bars
    windowInsetsController.setSystemBarsBehavior(
            WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE
    );
    // Hide both the status bar and the navigation bar
    windowInsetsController.hide(WindowInsetsCompat.Type.systemBars());
}

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