How do I get a platform-dependent new line character?
JavaCross PlatformNewlineEolJava Problem Overview
How do I get a platform-dependent newline in Java? I can’t use "\n" everywhere.
Java Solutions
Solution 1 - Java
Java 7 now has a System.lineSeparator() method.
Solution 2 - Java
You can use
System.getProperty("line.separator");
to get the line separator
Solution 3 - Java
In addition to the line.separator property, if you are using java 1.5 or later and the String.format (or other formatting methods) you can use %n as in
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 Formatter for more details.
Solution 4 - Java
If you're trying to write a newline to a file, you could simply use BufferedWriter's newLine() method.
Solution 5 - Java
This is also possible: String.format("%n").
Or String.format("%n").intern() to save some bytes.
Solution 6 - Java
The commons-lang library has a constant field available called SystemUtils.LINE_SEPARATOR
Solution 7 - Java
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.
Solution 8 - Java
If you are writing to a file, using a BufferedWriter instance, use the newLine() method of that instance. It provides a platform-independent way to write the new line in a file.
Solution 9 - Java
Avoid appending strings using String + String etc, use StringBuilder instead.
String separator = System.getProperty( "line.separator" );
StringBuilder lines = new StringBuilder( line1 );
lines.append( separator );
lines.append( line2 );
lines.append( separator );
String result = lines.toString( );