Assume that command is a variable of type String. Write a statement that throws an Exception with a message “null command” if command is null and that throws an Exception with a message “empty command” if command equals the empty string.
LANGUAGE: JAVA
CHALLENGE:
Assume that command is a variable of type String. Write a statement that throws an Exception with a message “null command” if command is null and that throws an Exception with a message “empty command” if command equals the empty string.
SOLUTION:
if (command==null)
throw new Exception("null command");
else if (command.equals(""))
throw new Exception("empty command");