扫描仪nextline（）仅打印新行

Question

String line;
File input = new File("text.txt");
Scanner scan = new Scanner(input);
while (scan.hasNext()) //also does not work with hasNextLine(), but additional error
{
line = scan.nextLine();
System.out.println(line);
//other code can see what is in the string line, but output from System.out.println(line); is just a new line
}

Answer 1

这是用于nextline()的Javadoc

将此扫描仪推进到当前行，并返回跳过的输入。此方法返回当前行的其余部分，不包括结尾处的任何行分隔符。位置设置为下一行的开头。

您需要next():

while (scan.hasNext())
{
  line = scan.next();
  System.out.println(line);
}