私は、問題は言葉「引用」</p> <pre><code>if (quotesCopy.size() > 20) { quotesCopy = new ArrayList<String>(); } displayMessageTextView.setText(quote); </code></pre> <p>これは私のコードのすべてであると、コードのこのブロックである私のコードでシンボルエラーを解決できない

Question

を受けています：

public class MainActivity extends AppCompatActivity { 

    private Button addButton; 
    private TextView displayMessageTextView; 
    private ArrayList<String> quotesCopy = new ArrayList<String>(); 
    private ArrayList<String> quotes = new ArrayList<String>(); 
    private Random randomGenerator = new Random(); 
    private int previousNumber = 0; 

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

     quotes.add("You smart! You loyal! You're a genious!"); 
     quotes.add("I appreciate you"); 
     quotes.add("This is a major key"); 
     quotes.add("They will try to close the door on U, just open it"); 
     quotes.add("The key to more success is CoCo butter"); 
     quotes.add("Congratulations, you played yourself"); 
     quotes.add("Another one, no. Another two"); 
     quotes.add("I changed... a lot"); 
     quotes.add("They don't want you to jet ski"); 
     quotes.add("The key is to have every key"); 
     quotes.add("Almond milk + Cinnamon Toast Crunch = Major key to success"); 
     quotes.add("Do you see that bamboo? Ain't nothing like bamboo. Blessup"); 
     quotes.add("Bless up. Egg whites, Turkey bacon, Hashbrown, Water"); 
     quotes.add("They wanna come stress me out? Heh, bye"); 
     quotes.add("Lion Order"); 
     quotes.add("Watch your back, but when you get out of the shower dry your back, it's a cold world"); 
     quotes.add("Some of ya'll crabs"); 
     quotes.add("ANOTHA ONE"); 
     quotes.add("We jus seen 2 dolphins"); 
     quotes.add("They don't want you to win"); 
     quotes.add("Be A Star. Be A Superstar"); 
     quotes.add("I remember when I ain't have a jacuzzi"); 
     quotes.add("The other day the grass was brown, now it's green cuz I ain't give up"); 
     quotes.add("In life everyone has a choice. The key is...make a right choice"); 
     quotes.add("We have to get money. We have no choice. It cost money to eat"); 
     quotes.add("I love my bamboo trees. I love fruits. I love apples."); 
     quotes.add("I told y'all this before, when you have a swimming pool do not use chlorine, use salt water"); 
     quotes.add("The key is: never fold"); 
     quotes.add("major key, get a pedicure and manicure once a week"); 
     quotes.add("They dont want you to be healthy"); 
     quotes.add("To make it thru the jungle you're gonna have to sweat"); 
     quotes.add("They never said winning was easy"); 
     quotes.add("It's important to shape up your hedges. It's like getting a haircut"); 
     quotes.add("LIOOOOON"); 
     quotes.add("To succeed, you must believe. When you believe you will succeed. "); 
     quotes.add("The key to success is to have a hammock"); 
     quotes.add("Some people can't handle winning. I can."); 
     quotes.add("They don't want you to have lunch"); 
     quotes.add("It's not an easy road but give thanks to the road"); 
     quotes.add("The key to success is to have a lot of pillows. A lot."); 

     displayMessageTextView = (TextView) findViewById(R.id.displayMessageTextView); 
     displayMessageTextView.setText("Press the button to generate a random quote"); 

     addButton = (Button) findViewById(R.id.addObjecttive); 
     addButton.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       Boolean isDifferent = false; 
       while (!isDifferent) { 
        int randomQuoteIndex = getRandomNumber(); 
        String quote = quotes.get(randomQuoteIndex); 
        if (!quotesCopy.contains(quote)) { 
         isDifferent = true; 
         quotesCopy.add(quote); 
        } 
        if (quotesCopy.size() > 20) 
         quotesCopy = new ArrayList<String>(); 
       } 

       displayMessageTextView.setText(quote); 
      } 
     }); 
    } 

    public int getRandomNumber() { 
     int randomNumber = randomGenerator.nextInt(40); 

     while (previousNumber == randomNumber) { 
      randomNumber = randomGenerator.nextInt(40); 
     } 

     previousNumber = randomNumber; 

     return randomNumber; 
    } 
} 

Answer 1

ループ

@Override 
    public void onClick(View v) { 
     Boolean isDifferent = false; 
     String quote ; 
     while (!isDifferent) { 
      int randomQuoteIndex = getRandomNumber(); 
      quote = quotes.get(randomQuoteIndex); 
      if (!quotesCopy.contains(quote)) { 
       isDifferent = true; 
       quotesCopy.add(quote); 
      } 
      if (quotesCopy.size() > 20) 
       quotesCopy = new ArrayList<String>(); 
     } 

     displayMessageTextView.setText(quote); 
    }