I wrote the code to receive name from EditText, but when I initialize EditText variable my app crashes

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;

public class test_activity extends AppCompatActivity {
    String name;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_test_activity);
    }

    final EditText editText = (EditText) findViewById(R.id.editText);**

    public void set_text(View view){
        name = editText.getText().toString();
   }


}