Android Studio错误:出现类，接口或枚举 [英] Android Studio Error: class, interface, or enum expeted

问题描述

我正在尝试在数据库中进行插入测试数据，但是无法正常工作.

I'm trying to do an insert test data in my database, but is not working.

将此视频作为参考，但无法正常运行: https://www.youtube .com/watch?v = RPi7ueKwEXg

Follow this video as a reference, but it did not work: https://www.youtube.com/watch?v=RPi7ueKwEXg

参见下文:

package com.bytemeta.bytenota.dominio;

import android.content.ContentValues;
import android.content.Context;
import android.database.*;
import android.database.sqlite.*;
import android.widget.ArrayAdapter;
import android.widget.*;

public class RepositorioCadastro{
    private SQLiteDatabase conn;
    public RepositorioCadastro(SQLiteDatabase conn){
        this.conn = conn;
    }
        public void testeInserirCadastro(){
            for (int i = 0; i < 10; i++){
                ContentValues values = new ContentValues();
                values.put("NOME", "THIAGO");
                conn.insertOrThrow("CADASTRO", null, values);
            }
        }
    }

    public ArrayAdapter<String> buscaCadastro(Context context){

        ArrayAdapter<String> adpCadastro = new ArrayAdapter<String>(context, android.R.layout.simple_list_item_1);
        Cursor cursor = conn.query("BYTENOTA_DB",null,null,null,null,null,null,null);

        if (cursor.getCount() > 0) {

            cursor.moveToFirst();
            do {
                String NOME = cursor.getString(1);
                adpCadastro.add(NOME);
            }while (cursor.moveToNext());
        }
        return adpCadastro;

    }

}

推荐答案

当类声明中没有代码时，Android Studio会抛出该错误. 您的public ArrayAdapter<String> buscaCadastro目前不在课程内.删除testeInserirCadastro之后多余的右大括号，这应该可以解决.

Android Studio throws that error when you have code out of the class declaration. Your public ArrayAdapter<String> buscaCadastro is out of the class right now. Remove the extra closing curly brace after testeInserirCadastro, that should fix it.

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