java - 需要帮助计算 arrayList 中的字符

Question

import java.io.* ;
import java.util.ArrayList ;
public class WordSearchPuzzle;
{
    private char[][] puzzle ;
    private ArrayList<String> puzzleWords ;
    private int letterCount = 0 ;
    private int gridDimensions;

    public WordSearchPuzzle(ArrayList<String> userSpecifiedWords)
    {
        this.puzzleWords = userSpecifiedWords ;

    }
    private void createPuzzleGrid()
    {
      int i;
        for(i = 0; i < puzzleWords.size(i).length ; i++){
          letterCount = puzzleWords + letterCount ;
            }
        }
        gridDimensions = letterCount * 1.5;
        puzzle[gridDimensions][gridDimensions];
    }

    public WordSearchPuzzle(String wordFile, int wordCount,
    int shortest, int longest)
    {
        // puzzle generation using words from a file
        // The user supplies the filename. In the file 
        // the words should appear one per line.
        // The wordCount specifies the number of words
        // to (randomly) select from the file for use in
        // the puzzle.
        // shortest and longest specify the shortest
        // word length to be used and longest specifies
        // the longest word length to be used.
        // SO, using the words in the file randomly select
        // wordCount words with lengths between shortest
        // and longest.

    }

    private ArrayList<String> loadWordsFromFile(String filename, int shortest, int longest)
    {
        // BasicEnglish.txt - the 850 words of Basic English
        // BNCwords.txt - "the 6,318 words with more than 800 occurrences in
        //the whole 100M-word BNC"
        try {
            FileReader aFileReader = new FileReader(filename);
            BufferedReader aBufferReader = new BufferedReader(aFileReader);
            String lineFromFile;
            int len ;
            ArrayList<String> words = new ArrayList<String>();
            lineFromFile = aBufferReader.readLine() ;
            while (lineFromFile != null) {  
                len = lineFromFile.length() ;
                if(len >= shortest && len <= longest) {
                    words.add(lineFromFile.toUpperCase());
                }
                lineFromFile = aBufferReader.readLine() ;
            }
            aBufferReader.close();
            aFileReader.close();
            return words ;
        }
        catch(IOException x)
        {
            return null ;
        }
    }

    // The dimensions of the puzzle grid should be set
    // by summing the lengths of the words being used in the
    // puzzle and multiplying the sum by 1.5 or 1.75
    // or some other (appropriate) scaling factor to
    // ensure that the grid will have enough additional
    // characters to obscure the puzzle words. Once
    // you have calculated how many characters you are
    // going to have in the grid you can calculate the
    // grid dimensions by getting the square root (rounded up)
    // of the character total.
}

你好，我为了上大学必须在这里做一个小的 Java 项目。这是我到目前为止所拥有的。我不明白为什么它没有编译。我编写了用于生成网格的代码；网格尺寸由输入词设置(所有输入词的字母总和 * 1.5)。我不确定将 Array List 的所有元素加在一起的部分。

这是怎么回事？提前致谢:)

Answer 1

我可以看到多个问题:

在类声明行中不应有分号。

public class WordSearchPuzzle

如 Nettogrof 所示，createPuzzleGrid 方法中的 } 太多。

createPuzzleGrid 中的循环使用了不存在的方法。 没有采用数组列表参数的 size 方法。它也没有在那个时候找到字符串的长度 createPuzzleGrid 中的循环应该是:

for (int i = 0; i < puzzleWords.size; i++) {
    String item = puzzleWords.get(i);
    int itemLength = item.length();
    letterCount = letterCount + itemLength;
}

作为额外说明，该方法的最后一行访问 puzzle 数组但不执行任何操作，因此可以删除该行。事实上，没有方法使用 puzzle 变量，因此它可以被完全删除。