Question

Replace any alphabetic character with '_' in 2-character string passCode. Ex: If passCode is "9a", output is:

Answer 1

Answer:

Code which is pasted in the place of "/* Your solution goes here */":

 if (isalpha(passCode[0])) // if statement for the first character of the passcode string.

      passCode[0]='_';

  if (isalpha(passCode[1]))  // if statement for the second character of the passcode string.

      passCode[1]='_';

Output:

• If the user gives input as '4h', then it will prints '4_'.
• If the user gives input as 'a8', then the output is '_8'.

Explanation:

Missing information:

• There is a three header file missing in the question programming code which names as the "cctype", 'iostream', 'cstring'.

Code Explanation:

• The above code is in c++ programing language, which is pasted on the place of "/* Your solution goes here */", which is written in the question part.
• The first if-statement checks the first character of the string that it is a charter or not if it is a character then replace the character with an underscore.
• The second if-statement is used to check the second character of the staring that is it a character or not if it then replaces the character with an underscore.