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To keep white-space,Try this:
s = s.replaceAll("(.{0,"+ x+"})\\b", "$1\n");
To ignore white-space(trim)or the trimmed version,
s = s.replaceAll("(?:\\s*)(.{01,"+ x +"})(?:\\s+|\\s*$)", "$1\n");
To keep white-space,
To ignore white-space(trim),
s = s.replaceAll("(.{0,"+ x +"})(?:\\s+|\\s*$)", "$1\n");
Try this:
or the trimmed version,
s = s.replaceAll("(?:\\s*)(.{1,"+ x +"})(?:\\s+|\\s*$)", "$1\n")
Try this:To keep white-space,
