Solve by Sava **12.27 (Replace words) Suppose you have a lot of files in a directory that contain words Exercisei j, where i and j are digits. Write a program that pads a 0 before i if i is a single...

Extracted text: Solve by Sava **12.27 (Replace words) Suppose you have a lot of files in a directory that contain words Exercisei j, where i and j are digits. Write a program that pads a 0 before i if i is a single digit and O before j if j is a single digit. For example, the word Exercise2_1 in a file will be replaced by Exercise02_01. In Java, when you pass the symbol from the command line, it refers to all files in the direc- tory (see Supplement III.V). Use the following command to run your program: java Exercise12 27