您可以将ASCII编码用于7位字符

String s = “Hello World!”;

byte[] b = s.getBytes(“ASCII”);

System.out.println(new String(b, “ASCII”));

或8位ascii

String s = “Hello World! \u00ff”;

byte[] b = s.getBytes(“ISO-8859-1”);

System.out.println(new String(b, “ISO-8859-1”));

编辑

System.out.println(“ASCII => ” + Charset.forName(“ASCII”));

System.out.println(“US-ASCII => ” + Charset.forName(“US-ASCII”));

System.out.println(“ISO-8859-1 => ” + Charset.forName(“ISO-8859-1”));

版画

ASCII => US-ASCII

US-ASCII => US-ASCII

ISO-8859-1 => ISO-8859-1