Create multiline Java string using C# + Linqpad

multiline-java-string-formatter.cs

var s = @"SELECT *
	FROM TABLE
	WHERE ID = @ID
";

var sb = new StringBuilder();

var lines = Regex.Split(s, "\n");
for (int i = 0; i < lines.Length; ++i)
{
	var line = lines[i];
	if (i == lines.Length - 1 && line.Trim().Length == 0)
		continue;
		
	sb.Append("\"" + Regex.Replace(line, "[\r\n]", "") + "\\n\" +\n");
}

sb.Length -= 3;
sb.ToString().Dump();