方法不 printing/returning

Question

我的一种方法有问题。我检查了一遍又一遍，似乎找不到任何错误。我遇到的问题是该方法在调用时不会在控制台中打印。我认为这可能与方法中的 Scanner 有关。

该方法的代码是：

public String cpuGuess() throws FileNotFoundException{
        Scanner fileRead = new Scanner(myGuesses);
        int line = rand.nextInt(99-1)+1;
        for(int i = 0; i <= line; i++){
            Guess = fileRead.next();
        }
        fileRead.close();
        CPUGuess = Guess;
        if(Arrays.asList(super.used).contains(CPUGuess)){
            System.out.println(cpu.cpuGuess());
        }
        else{
            StringBuffer hiddenBuff = new StringBuffer(hidden);
            for (int t = 0; t < phrase.length(); )
                if (CPUGuess == Character.valueOf(phrase.charAt(t)).toString()){
                    count++;
                }
            if (phrase.contains(CPUGuess)){
                ArrayList<Integer> indicies = new ArrayList<Integer>();
                for (int index = phrase.indexOf(CPUGuess.toString()); index >= 0; index = phrase.indexOf(CPUGuess.toString(), index + 1)){
                    indicies.add(index);
                }
                int[] index = new int[indicies.size()];
                for(int i = 0; i < indicies.size(); i++) {
                    index[i] = indicies.get(i);
                }
                for (int n = 0; n < index.length; n++){
                    hiddenBuff.setCharAt(index[n], CPUGuess.charAt(0));
                }
                hidden = hiddenBuff.toString();
                status = "Correct";
            }
            else if (!phrase.contains(CPUGuess)){
                System.out.println("Sorry, no " + Guess + "'s");
                System.out.println("Human, you're up!");
            }
            super.used.add(CPUGuess.charAt(0));
        }
        System.out.println(count + " " + CPUGuess + "s");
        count = 0;
        return hidden;
    }

我在main方法下调用class中的方法：

public static void main(String[] args) throws FileNotFoundException {
    System.out.println("WHEEL... OF... FORTUNE!!!!");
    System.out.println(board.phraseGenerate());
    System.out.println(cpu.cpuGuess());
}

请注意，cpu 对象已经构建，board.phraseGenerate 创建隐藏和短语。

感谢您的帮助，请不要居高临下，我在这方面相对较新，我看到很多 post 得到令人沮丧的反馈。

Answer 1

查看您的代码，您似乎在 for 循环之后缺少左花括号，如下所示：

 for (int t = 0; t < phrase.length(); )

应该是

 for (int t = 0; t < phrase.length(); ) { }

以上导致打印语句被跳过。不要忘记，正如我在评论中提到的，您正在跳过循环的第三部分（增量）。不确定你的代码是否应该这样工作，或者你必须在那里添加一个 t++，如下所示：

//not sure if you forgot t++ or that's how it is supposed to work
for (int t = 0; t < phrase.length(); t++) { }

Answer 2

您必须在此 for 循环中递增 t：

for (int t = 0; t < phrase.length(); )
                if (CPUGuess == Character.valueOf(phrase.charAt(t)).toString()){
                    count++;
                }

此外，您还漏掉了一个左花括号...我们中最优秀的人都会遇到这种情况。最后，加上增量和花括号：

for (int t = 0; t < phrase.length(); t++ ) { //Need that curly brace!

                   if (CPUGuess == Character.valueOf(phrase.charAt(t)).toString()){
                        count++;

     } 
}

                //t++ Probably important...!

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