Java 如何获得依赖于平台的换行符？
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How do I get a platform-dependent new line character?
提问by Spoike
How do I get a platform-dependent newline in Java? I can't use "\n"everywhere.
如何在 Java 中获得依赖于平台的换行符？我不能"\n"到处使用。
采纳答案by Alex B
In addition to the line.separator property, if you are using java 1.5 or later and the String.format(or other formattingmethods) you can use %nas in
除了line.separator属性，如果您使用的是Java 1.5或更高版本和的String.format（或其他格式化方法），可以使用%n在
Calendar c = ...;
String s = String.format("Duke's Birthday: %1$tm %1$te,%1$tY%n", c);
//Note `%n` at end of line ^^
String s2 = String.format("Use %%n as a platform independent newline.%n");
// %% becomes % ^^
// and `%n` becomes newline ^^
See the Java 1.8 API for Formatterfor more details.
有关更多详细信息，请参阅Java 1.8 API for Formatter。
回答by abahgat
You can use
您可以使用
System.getProperty("line.separator");
to get the line separator
获取行分隔符
回答by Michael Myers
回答by Damaji kalunge
If you are writing to a file, using a BufferedWriterinstance, use the newLine()method of that instance. It provides a platform-independent way to write the new line in a file.
如果您正在使用BufferedWriter实例写入文件，请使用该实例的newLine()方法。它提供了一种独立于平台的方式来在文件中写入新行。
回答by lexicalscope
The commons-langlibrary has a constant field available called SystemUtils.LINE_SEPARATOR
该公地郎库有一个可用的恒定场称为SystemUtils.LINE_SEPARATOR
回答by StriplingWarrior
Java 7 now has a System.lineSeparator()method.
Java 7 现在有一个System.lineSeparator()方法。
回答by Gary Davies
Avoid appending strings using String + String etc, use StringBuilder instead.
避免使用 String + String 等附加字符串，而是使用 StringBuilder。
String separator = System.getProperty( "line.separator" );
StringBuilder lines = new StringBuilder( line1 );
lines.append( separator );
lines.append( line2 );
lines.append( separator );
String result = lines.toString( );
回答by ceving
This is also possible: String.format("%n").
这也是可能的：String.format("%n")。
Or String.format("%n").intern()to save some bytes.
或者String.format("%n").intern()节省一些字节。
回答by Sathesh Balakrishnan Manohar
StringBuilder newLine=new StringBuilder();
newLine.append("abc");
newline.append(System.getProperty("line.separator"));
newline.append("def");
String output=newline.toString();
The above snippet will have two strings separated by a new line irrespective of platforms.
无论平台如何，上面的代码片段都有两个由新行分隔的字符串。
