Java 句后加新行(为什么要加双新行来解决)?
Java add new line after a sentence ( why double new line to solve it)?
所以当我尝试做一些关于 IOFile 的练习时,我遇到了一个关于在 txt 文件上写字符串的问题,特别是在新文件中的每个句子之后写一个新行 (\n)。
这是我的代码:
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
File Lyrics = new File("Lyrics.txt");
File output = new File ("output.txt");
try {
Scanner myReader = new Scanner (Lyrics);
try {
FileWriter FBI = new FileWriter(output);
while (myReader.hasNextLine()) {
FBI.write(myReader.nextLine());
FBI.write("\n");
}
FBI.close();
}catch (IOException e) {}
myReader.close();
}catch (FileNotFoundException e) {}
}
}
Lyrics.txt:
I could never find the right way to tell you
Have you noticed I've been gone
Cause I left behind the home that you made me
But I will carry it along
输出:
I could never find the right way to tell you
Have you noticed I've been gone
Cause I left behind the home that you made me
But I will carry it along
***invisible new line here
请求练习的输出:
I could never find the right way to tell you
Have you noticed I've been gone
Cause I left behind the home that you made me
But I will carry it along
***invisible new line here
在尝试添加新代码行并试图找出问题所在后,我简单地修改了有关在
中添加新行的代码行
FBI.write("\n\n");
但我仍然很困惑为什么我必须添加一个双换行 (\n\n) 来写句子后跟换行...
A \n
换行符在上一行的正下方开始一个新行,没有间隙。如果你想在句子之间有一个空行,你需要添加第二个 \n
来创建一个空行。
\n
表示换行。
所以如果我的文字是
FooBar\nHello World
我会收到
FooBar
Hello World
自从 \n
(新行)使我们的 HelloWorld
移动到新行以来,一切都是正确的。
但是你想要两个新行(当前一行+一个空白行)而不是一个,你必须使用 \n\n
.
输入
FooBar\n\nHello World
输出
FooBar
Hello World
所以当我尝试做一些关于 IOFile 的练习时,我遇到了一个关于在 txt 文件上写字符串的问题,特别是在新文件中的每个句子之后写一个新行 (\n)。
这是我的代码:
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
File Lyrics = new File("Lyrics.txt");
File output = new File ("output.txt");
try {
Scanner myReader = new Scanner (Lyrics);
try {
FileWriter FBI = new FileWriter(output);
while (myReader.hasNextLine()) {
FBI.write(myReader.nextLine());
FBI.write("\n");
}
FBI.close();
}catch (IOException e) {}
myReader.close();
}catch (FileNotFoundException e) {}
}
}
Lyrics.txt:
I could never find the right way to tell you
Have you noticed I've been gone
Cause I left behind the home that you made me
But I will carry it along
输出:
I could never find the right way to tell you
Have you noticed I've been gone
Cause I left behind the home that you made me
But I will carry it along
***invisible new line here
请求练习的输出:
I could never find the right way to tell you
Have you noticed I've been gone
Cause I left behind the home that you made me
But I will carry it along
***invisible new line here
在尝试添加新代码行并试图找出问题所在后,我简单地修改了有关在
中添加新行的代码行FBI.write("\n\n");
但我仍然很困惑为什么我必须添加一个双换行 (\n\n) 来写句子后跟换行...
A \n
换行符在上一行的正下方开始一个新行,没有间隙。如果你想在句子之间有一个空行,你需要添加第二个 \n
来创建一个空行。
\n
表示换行。
所以如果我的文字是
FooBar\nHello World
我会收到
FooBar
Hello World
自从 \n
(新行)使我们的 HelloWorld
移动到新行以来,一切都是正确的。
但是你想要两个新行(当前一行+一个空白行)而不是一个,你必须使用 \n\n
.
输入
FooBar\n\nHello World
输出
FooBar
Hello World