import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    ListView list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        list = findViewById(R.id.List);
        ArrayList<String> fd = new ArrayList<String>();
        fd.add("roda");
        fd.add("ghh");
        fd.add("asfff");
        fd.add("jll");
        ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,fd);
        list.setAdapter(arrayAdapter);
        list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id)
            {                Toast.makeText(MainActivity.this,"hello",fd.get(position),Toast.LENGTH_LONG).show();
            }
        });
    }
}

Toast.makeText(this,"hello",fd.get(position),Toast.LENGTH_LONG).show();

Toast.makeText(MainActivity.this,"hello",fd.get(position),Toast.LENGTH_LONG).show();