LineIterator 类（ LineIterator Class）

提供使用基于行的文件的灵活方式。

Class 声明 (Class Declaration)

以下是org.apache.commons.io.LineIterator类的声明 -

public class LineIterator
   extends Object implements Iterator<String>, Closeable

LineIterator类的示例

这是我们需要解析的输入文件 -

Welcome to IoWiki. Simply Easy Learning.
Learn web technologies,
prepare exams,
code online,
all at one place.

IOTester.java

import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.LineIterator;
public class IOTester {
   public static void main(String[] args) {
      try {
         usingLineIterator();
      } catch(IOException e) {
         System.out.println(e.getMessage());
      }
   }
   public static void usingLineIterator() throws IOException {
      //get the file object
      File file = FileUtils.getFile("input.txt");
      try(LineIterator lineIterator = FileUtils.lineIterator(file)) {
         System.out.println("Contents of input.txt");
         while(lineIterator.hasNext()) {
            System.out.println(lineIterator.next());
         }
      }
   }
}

输出 (Output)

它将打印以下结果。

Contents of input.txt
Welcome to IoWiki. Simply Easy Learning.
Learn web technologies,
prepare exams,
code online,
all at one place.