使用Java计算文本文件中的段落数
我们可以通过读取字符串中的段落来读取文件中的段落，然后根据“\r\n”模式进行分割。请参阅下面的示例-
示例
在类路径中请看以下文本文件。
test.txt
This is Line 1 This is Line 2 This is Line 3 This is Line 4 This is Line 5 This is Line 6 This is Line 7 This is Line 8 This is Line 9 This is Line 10
测试器
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
public class Tester {
public static void main(String args[]) throws IOException {
FileUtil fileUtil = new FileUtil();
System.out.println("No. of paragraphs in file: " + fileUtil.getParaCount());
}
}
class FileUtil {
private static final String FILE_PATH = "data.txt";
public static int getParaCount() throws IOException {
File file = new File(FILE_PATH);
FileInputStream fileStream = new FileInputStream(file);
byte[] byteArray = new byte[(int)file.length()];
fileStream.read(byteArray);
String data = new String(byteArray);
String[] paragraphs = data.toString().split("\r\n\r\n");
return paragraphs.length;
}
}这将产生以下结果-
输出结果
No. of paragraphs in file: 5