OutputStream

import java.io.File ;
  import java.io.Writer ;
  import java.io.FileWriter ;
  public class WriterDemo02{
  	public static void main(String args[]) throws Exception{
  		File f= new File("d:" + File.separator + "test.txt") ;	
  		Writer out = null ;
  		out = new FileWriter(f)  ;
  		String str = "\nhello\nHello World!!!" ;	
  		out.write(str) ;						
  		out.close() ;		
  	}
  };

code \ n newline how not achieve the role ? Must use \ r \ n job ( I have tested in win7 jdk1.6 ) Why is this ?
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file inside wrap wrap with java inside different
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windows system is \ r \ n, linux is \ n, you can use the buffer class newLine () method to improve compatibility < br> ------ Solution ----------------------------------------- ---
you use Notepad to open it, use Notepad , then we must use \ r \ n newline , if \ n you use another text editor to open can also wrap
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upstairs the correct
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+1, has been explained very clearly
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positive solution
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2floor right
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justdoingtest
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+1
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according to you for answering my own test it looks like in Notepad \ r \ n means a newline in some other text editor \ n or \ r \ n are can be expressed wrap.