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我正在使用这段代码，日志显示存在终止应用程序的错误，如
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.text.Editable android.widget.EditText.getText()' on a null object reference
at com.example.amuna.project1.addWord.confirmBtnClicked(addWord.java:25)
代码是
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class addWord extends AppCompatActivity {
EditText wordEdit, defEdit;
Button confirmButton;
@Override
public void onCreate(Bundle savedInstanceState) {
wordEdit=(EditText)findViewById(R.id.wordAdd);
defEdit=(EditText)findViewById(R.id.defAdd);
confirmButton=findViewById(R.id.confirmBtn);
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_word);
}
public void confirmBtnClicked(View v){
SharedPreferences pref = getSharedPreferences("pref", MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
String newWord = wordEdit.getText().toString();
String newDef = defEdit.getText().toString();
editor.putString("word", newWord);
editor.putString("def", newDef);
editor.commit();
}
}
请帮忙!这是 String newWord = wordEdit.getText().toString();有错误，如果我还有什么错误，请通知我。谢谢!