Please give a lot of detail, not just answer. 2. Suppose, we need to debug someb
ID: 3600281 • Letter: P
Question
Please give a lot of detail, not just answer.
2.
Suppose, we need to debug somebody else’s program. We suspect that there is a problem with the method wizbang() in class Widget or with how that method is called. We cannot modify class Widget, nor can we modify the client code that contains the calls to Widget.wizbang(), since we don’t have those sources. However, we can modify the code where Widget objects are created and we can create new classes.
In order to better understand what this method does, we would like to print the values of the parameters and the return value into a log file every time Widget.wizbang() is called. Explain, how you would produce this log file given the constraints that neither class Widget nor the client can be modified.
Explanation / Answer
import java.io.File; importjava.io.IOException; public class RenameFile { public static void main(String[] args) { try // Here F is the object of the Existing file named with Includehelp which is to be renamed. // { File F=new File("f:/Includehelp.txt"); // Here T is the object of the renamed file of Includehelp which is Include.txt. // File T=new File ("f:/Include.txt"); // Rename the file Includehelp.txt into Include.txt. // F.renameTo(T); // Print the result if file renamed. // System.out.println("File Rename Successfully..."); } // If any error occurs while renaming the file. // catch(Exception e) { System.out.println(e); } } }