Java tutorial
//package com.java2s; public class Main { /** * Replaces common newline characters like \n, \r, \r\n to the HTML line * break tag <br>. * * @param text the text to substitute. * @return the substituted text. */ public static String htmlNewline(String text) { if (text == null || text.trim().isEmpty()) { return null; } return text.replaceAll("(\n|\r|\r\n)", "<br>"); } }