Question

出现此错误时，我正在编写DatabaseHelper代码。

public class DatabaseHelper extends SQLiteOpenHelper {

private static final String DB_NAME = "Items.db";
private static final String DB_TABLE = "Items_Table";

private static final String DB_TABLE1 = "Items_Table1";
private static final String NAME = "NAME";
private static final String ID = "ID";
private static final String ID1 = "ID1";
private static final String PLACE = "PLACE";



private static final String CREATE_TABLE = "CREATE TABLE " +      DB_TABLE + " (" + ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + NAME
        + " TEXT " + ")";
private static final String CREATE_TABLE1 = "CREATE TABLE " + DB_TABLE1 + " (" + ID1 + " INTEGER PRIMARY KEY AUTOINCREMENT, "+
        PLACE + " TEXT " + " , " + ID + " INTEGER REFERENCES " + DB_TABLE + ")";



public  DatabaseHelper(Context context)
{

    super(context,DB_NAME,null,1);
}

public void onConfigure(SQLiteDatabase db)
{
    super.onConfigure(db);
    db.setForeignKeyConstraintsEnabled(true);
}



public void onCreate(SQLiteDatabase db)
{
    db.execSQL(CREATE_TABLE);
    db.execSQL(CREATE_TABLE1);
}

我收到一个Android studio错误：非法字符：'\ u2028'。这是什么意思，我该如何纠正。

Answer 1

这是换行符，如果您转到引起错误的每一行并删除“不可见”的最后一个字符，则错误将得到解决

对于导致错误的行，请对每个具有非法字符错误的行进行一次退格

您还可以使用Android Studio中的替换功能，在“替换为”中放置一个空字符串来代替此非法字符。

Android Studio中的错误：非法字符：'\ u2028'

1 个答案: