A、 0 B、 1 C、 2 D、 3 E、 4 F、 Compilation fails. H、 An exception is thrown at runtime.
A、 0 B、 1 C、 2 D、 3 E、 4 F、 Compilation fails. H、 An exception is thrown at runtime.
A、getParameter(String s) B、getValue(String s) C、getParameterNames(String s) D、getParameterValue(String s)
A、s1 B、s2 C、s2 和 s3 D、s2 和 s4
A、elm elm elm elm B、tree elm elm elm C、tree elm tree elm D、编译失败
A、 String s = "Gone with the wind";String t = " good ";String k = s + t; B、 String s = "Gone with the wind";String t; t = s[3] + "one"; C、 String s = "Gone with the wind";String standard = s.toUpperCase(); D、 String s = "home directory";String t = s - "directory";
A、if(s==s2) B、if(s.equals(s2)) C、if(s.equalsIgnoreCase(s2)) D、if(s.noCaseMatch(s2))
A、String s = "Gone with the wind";  String t = " good ";  String k = s + t; B、String s = "Gone with the wind";  String t;  t = s[3] + "one"; C、String s = "Gone with the wind";  String standard = s.toUpperCase(); D、String s = "home directory"; String t = s - "directory"
A、String s = “Gone with the wind”;  String t = “ good”;  String k = s + t; B、String s = “Gone with the wind”;  String t;  t = s[3] + “one”; C、String s = “Gone with the wind”;  String standard = s.toUpperCase(); D、String s = “home directory”;  String t = s – “directory”;
A、 String s = "Gone with the wind";String t = " good ";String k = s + t; B、 String s = "Gone with the wind";String t;t = s[3] + "one"; C、 String s = "Gone with the wind";String standard = s.toUpperCase(); D、 String s = "home directory";String t = s - "directory";