Remova a nova linha em string de java
String text = "line 1\n\nline 3\n\n\nline 5";
String adjusted = text.replaceAll("(?m)^[ \t]*\r?\n", "");
Blue-eyed Bug
String text = "line 1\n\nline 3\n\n\nline 5";
String adjusted = text.replaceAll("(?m)^[ \t]*\r?\n", "");
// #5
text = text.replaceAll("\\R", " ");