He was not conspicuously hairy nor shiny-bald, but his hair was graying and receding tactfully in keeping with his age.
A bright shiny appearance of the sealing surfaces on diesel engine compression rings indicates()
A bright shiny appearance of the sealing surfaces on diesel engine compression rings indicates()
class Mineral { static String shiny() { return "1"; } } class Granite extends Mineral { public static void main(String [] args) { String s = shiny() + getShiny(); s = s + super.shiny(); System.out.println(s); } static String getShiny() { return shiny(); } } 结果为:()