The ASCII table is arranged so that the value of the character '9' is nine greater than the value of '0' ; the value of the character '8' is ... ... <看更多>

要点： char与int ：可以相加减；int取本身数值，char取对应的ASCII码值；得到的结果是ASCII码增大或减小了int对应的数值大小；如果结果赋值给char ... ... <看更多>

valueOf() Convert using new Integer() Convert using DecimalFormat We can convert String to an int in java ... ... <看更多>