مشکل این کد چیه که اجرا نمیشه
package info.somaiye.namekodak;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.util.ArrayList;
import java.util.List;
public class alef_dokhi extends AppCompatActivity {
List<String> Items;
ListView ListView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_alef_dokhi);
prepareData();
ListView ListView =findViewById(R.id.listview_alef_d);
refreshDisplay();
}
private void refreshDisplay() {
ArrayAdapter<String>adapter =new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,Items);
ListView.setAdapter(adapter);
}
private void prepareData() {
Items = new ArrayList<>();
final boolean add2 = Items.add(getString(R.string.arezo));
final boolean add1 = Items.add(getString(R.string.ashraf));
final boolean add = Items.add(getString(R.string.elina));
}
}
