final class Tree ｛ private static String tree ＝ "tree "； String getTree（）｛ return tree；｝｝ class Elm extends Tree ｛ private static String tree ＝ "elm "； public static void main（String [] args）｛ new Elm（）.go（new Tree（））；｝ void go（Tree t）｛ String s ＝ t.getTree（）+Elm.tree+tree+（new Elm（）.getTree（））； System.out.println（s）；｝｝结果为：（） -题库考试答案搜索网

final class Tree ｛ private static String tree ＝ "tree "； String getTree（）｛ return tree；｝｝ class Elm extends Tree ｛ private static String tree ＝ "elm "； public static void main（String [] args）｛ new Elm（）.go（new Tree（））；｝ void go（Tree t）｛ String s ＝ t.getTree（）+Elm.tree+tree+（new Elm（）.getTree（））； System.out.println（s）；｝｝结果为：（）

单选题

2022-05-09 16:02

A、elm&ensp;elm&ensp;elm&ensp;elm
B、tree&ensp;elm&ensp;elm&ensp;elm
C、tree&ensp;elm&ensp;tree&ensp;elm
D、编译失败

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正确答案

D

试题解析

标签： CMS专题 Java认证考试 Java认证考试综合练习

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