java - 数组读取问题

Question

美好的一天。我有以下部分代码，我正在努力使其工作。我有一个包含问题的文本文件，它的结构方式是文本文件中的每个问题占用 10 行，但我只想显示每个问题的前 6 行，然后隐藏其余的。

我在 texfile 中的问题如下所示:

Collections
Which of these is not an example of a "real-life" collection?
a. The cards you hold in a card game.
b. Your favorite songs stored in your computer.
c. The players on a soccer team.
d. The number of pages in a book. 

d. /// answer


Multithreading
Indefinite postponement is often referred to as __________.
a. deadlock.
b. indigestion.
c. starvation.
d. None of the above.

c. /// answer

基本上它只是显示问题而不显示答案。这就是我到目前为止想要实现的目标。

任何帮助将不胜感激。

File filing = new File(file);


        pattern.setFileName(filing.getAbsolutePath());

        if(filing.getAbsoluteFile().exists())
        {
            try{

            ReadFile myFile = new ReadFile(pattern.getFileName());

            String[ ] aryLines = myFile.OpenFile( );

             int i;


            for ( i=0; i < aryLines.length; i++ ) 
                {
                    System.out.println( aryLines[ i ] ) ;

                    if(i == 6)
                        i = i+3;
                }

ReadFile类

import java.io.IOException;
import java.io.IOException;
import java.io.FileReader;
import java.io.BufferedReader;
public class ReadFile 
{
    private String path;

     ///////////// set file name

    public ReadFile(String filePath) 
    {
        path = filePath;
    }

    public String[] OpenFile() throws IOException
    {
        FileReader fr = new FileReader(path);

        BufferedReader textReader = new BufferedReader(fr);


        int numberOflines = path.length();

        String[] textData = new String[numberOflines];

        int count;

        for(count = 0; count < numberOflines; count++)
        {
            textData[count] = textReader.readLine();


        }

        textReader.close();
        return textData;
    }

    int readLines() throws IOException
    {
        FileReader fileToRead = new FileReader(path);

        BufferedReader br = new BufferedReader(fileToRead);

        String aLine;

        int numberOfLines = 0;

        while ( ( aLine = br.readLine( ) ) != null ) 
            {
                numberOfLines++;
            }

            br.close();

            return numberOfLines;
    }
}

Answer 1

您可以尝试在嵌套的 for 循环中进行迭代，如下所示:

    for (int i = 0; i < aryLines.length; i += 10) {
        // every iteration brings you to the beginning of a new question
        for (int j = 0; j < 6; j++) {
            System.out.println(aryLines[i + j]);
        }
    }