public class Base { public static final String FOO = “foo”; public static void main(String[] args) { Base b = new Base(); Sub s = new Sub(); System.out.print(Base.FOO); System.out.print(Sub.FOO); System.out.print(b.FOO); System.out.print(s.FOO); System.out.print(((Base)s).FOO); } } class Sub extends Base {public static final String FOO=bar;} What is the result?() [" foofoofoofoofoo"," foobarfoobarbar"," foobarfoofoofoo"," foobarfoobarfoo"," barbarbarbarbar"," foofoofoobarbar"," foofoofoobarfoo"]
为什么说场效应管是一种电压控制元件?
简述期刊工作现代化的标志。
灰铸铁以符号()表示。 ["HT","Z","K","DT"]
世界杯足球比赛,每()年举行一次。 ["1","2","3","4"]
简述比较教育借鉴时代及其研究的特点。