Router R1 refers to route - map fred when redistributing from EIGRP into OSPF. The entire route - map is listed next. Which of the following answers must be true based on the configuration as shown?（）
route - map fred deny 10
match ip address one
route - map fred deny 20
match ip address two
route - map fred permit 100
有关Map说法错误的是（ ）。
给定如下Java程序代码片段，编译运行这段代码，结果是（）。
java.util.HashMap map=new java.util.HashMap（）；
map.put（"name"，null）；
map.put（"name"，"Jack"）；
System.out.println（map.get（"name"））；
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