First and second options are obviously wrong since specifying filename will list for that filename only. Since we need to list only with .exe extension fourth option is correct. Third option displays all files with sys extension.
Answer: Option 3
The program will compile and execute successfully as you can declare methods with same name in an interface and the method of either interface can be used,...
Answer: Option 1
* is a wild card character that stands for all any character. When you specify filename.*, it meant filenameshould be specified one but extension can be any....
