aşağıdaki gibi kodu değiştirdim

package com.example.app;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;

public class MainActivity extends Activity {

private WebView mWebView;

@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mWebView = findViewById(R.id.activity_main_webview);
//mWebView.setWebViewClient(new WebViewClient());
mWebView.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {

String javascript;
mWebView.loadUrl("siteurl");
mWebView.setWebViewClient(new MyWebViewClient());

// LOCAL RESOURCE
// mWebView.loadUrl("file:///android_asset/index.html");
}

@Override
public void onBackPressed() {
if(mWebView.canGoBack()) {
mWebView.goBack();
} else {
super.onBackPressed();
}
}
}


hata aşağıdaki gibi ;
error: class, interface, or enum expected