String[] strings = "Thequickbrownfoxjumps".split("(?<=\\G.{4})"); // split all 4 chars
String[] strings = "Thequickbrownfoxjumps".split("(?<=\\G.{100})"); // this would be all 100 chars 
// -> ['Theq', 'uick', 'brow', 'nfox', 'jump', 's']