Question

请帮忙，我该怎么办？我在“In Helper execution”中遇到错误，它说“字符串文字没有被双引号正确关闭。”

public class SMS extends Activity {
//
   public static final String DEBUG_TAG = "FullDatabase Log"; 
   public static final int DB_version = 2; 
   //public static final String DB_name = "User.db"; 
   public static final String TABLE_NAME = "login"; 
   //public static final String TABLE_NAME = "tbl_temp"; 
   //public static final String DB_name = "User_temp"; 
   public static final String DBNAME = "login"; 
   public DatabaseHelper database_helper; 
   public SQLiteDatabase database; 
   public SQLiteDatabase database_rd; 
   /** Called when the activity is first created. */ 
   public void onCreate1(Bundle savedInstanceState) { 
   super.onCreate1(savedInstanceState); 
   setContentView(R.layout.main); 
   Toast.makeText(this,"Before Bundled", 
   Toast.LENGTH_SHORT).show(); 
   createDataBase(); 
   //LogIn login = new LogIn(); 
   Button submit = (Button)findViewById(R.id.widget71); 
   Toast.makeText(this,"after Bundled", 
   Toast.LENGTH_SHORT).show(); 
   submit.setOnClickListener(new View.OnClickListener() 
   { 
                   @Override 
                   public void onClick(View v) { 
                   // TODO Auto-generated method stub 
            SMS createaccount = new SMS(); 
            Toast.makeText(createaccount.getApplicationContext(), "In Helper executing 
            onCreate1()", Toast.LENGTH_SHORT).show(); 
                           String[] success = insertRecords(); 
                           if(success[0].equalsIgnoreCase("1")) 
                           { 
                             Intent mIntent = new Intent(LogIn.this,DisplayUser.class); 
                                   mIntent.putExtra("username",success[1]); 
                                   mIntent.putExtra("retype",success[2]); 
                                   mIntent.putExtra("password",success[3]);  
                                   startActivity(mIntent); 
                           } 
                   } 
           }); 
   //database.close(); 
}

Answer 1

在java字符串中不能跨越多行。改变

Toast.makeText(createaccount.getApplicationContext(), "In Helper executing 
            onCreate1()", Toast.LENGTH_SHORT).show();

到

Toast.makeText(createaccount.getApplicationContext(), "In Helper executing onCreate1()", Toast.LENGTH_SHORT).show();

Answer 2

我认为这是一个编译时错误。你把你的字符串分成两行（除非你显示的列表被包装）。如果你想要两行的字符串，请将其设为两个字符串 “这是一个开始” +“这就是结束。”

字符串文字未正确执行

2 个答案: