给定如下Java代码,编译运行的结果是() public class Test { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); String s = "code"; map.put(s, "1"); map.put(s, "2"); System.out.println(map.size()); } }A.编译时发生错误B.运行时引发异常C.正确运行,输出:1D.正确运行,输出:2
给定如下Java代码,编译运行的结果是() public class Test { public static void main(String[] args) { Map<String, String> map = new HashMap<String, String>(); String s = "code"; map.put(s, "1"); map.put(s, "2"); System.out.println(map.size()); } }
A.编译时发生错误
B.运行时引发异常
C.正确运行,输出:1
D.正确运行,输出:2
参考答案和解析
编译时报错
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