Origin: A repository from TongyunHuang

import java.io.File; import java.net.URI; import java.net.URL; import java.nio.charset.StandardCharsets; import java.security.InvalidParameterException; import java.util.Scanner;

/**

A class that prints lines for a given actress from a script.
The provided code is incomplete. Modify it so that it works properly and passes the unit tests in
PrintLinesTest.java.
@see MP1 Documentation */ public class PrintLines {

/**
- Script file that we use for interactive testing.
- Not the same as the files used during grading. */ private static final String INTERACTIVE_SCRIPT_FILE = "Rent-Excerpt.txt";
/**
- Prints lines from a script for a given actress (or actor).
- Given a script formatted like "Rent-Excerpt.txt" and "Rent.txt", print all lines for a given
- actress in the following format. For example, if the search term is "Roger" or "roger":
- roger
- This won't tune.
- Are you talking to me?
- I'm writing one great song --
- Etc. Here are the guidelines:
- 2. You should print the name of the actress in all lowercase first on a single line. But only
  3. once.
  5. A character begins speaking when their name appears alone on a line capitalized
  7. A character stops speaking when you reach an empty line
  9. Groups of lines are separated by "---". Put another way, once another character begins
  10. speaking, print the "---" divider. Your output should also end with a "---".
  12. If you are asked to search for lines for an actress that does not exist, you should print
  13. nothing: not their name, not any "---" separators.
- Complete the Javadoc comment and write this function.
*/ public static void linePrinter(final String actress, final String[] scriptLines) { return 0.0; }

/* ********************************************************************************************
- You do not need to modify code below this comment.
- ********************************************************************************************/
/**
- Solicits a single name from the user at the command line and searches for it in an excerpt
- from Rent (Rent-Excerpt.txt).
- You are free to review this function, but should not modify it. Note that this function is
- not tested by the test suite, as it is purely to aid your own interactive testing.
- @param unused unused input arguments */ public static void main(final String[] unused) {
  
  String inputPrompt = "Enter the name of an actress to print lines for:"; Scanner lineScanner = new Scanner(System.in);
  
  while (true) { String actressName; System.out.println(inputPrompt);
```
 /*
  * We could just use lineScanner.hasNextInt() and not initialize a separate scanner. But
  * the default Scanner class ignores blank lines and continues to search for input until
  * a non-empty line is entered. This approach allows us to detect empty lines and remind
  * the user to provide a valid input.
  */
 String nextLine = lineScanner.nextLine();
 Scanner inputScanner = new Scanner(nextLine);
 if (!(inputScanner.hasNext())) {
     /*
      * These should be printed as errors using System.err.println. Unfortunately,
      * Eclipse can't keep System.out and System.err ordered properly.
      */
     System.out.println("Invalid input: please enter an single name.");
     continue;
 }
 actressName = inputScanner.next();
 /*
  * If the line started with a string but contains other tokens, reinitialize userInput
  * and prompt the user again.
  */
 if (inputScanner.hasNext()) {
     System.out.println("Invalid input: please enter only a single name.");
     continue;
 }
 inputScanner.close();

 String rentExcerpt;
 try {
     URL rentExcerptURL = PrintLines.class.getClassLoader()
             .getResource(INTERACTIVE_SCRIPT_FILE);
     if (rentExcerptURL == null) {
         throw new Exception();
     }
     String rentExcerptPath = new URI(rentExcerptURL.getFile()).getPath();
     File rentExcerptFile = new File(rentExcerptPath);
     Scanner rentExcerptScanner = new Scanner(rentExcerptFile, StandardCharsets.UTF_8);
     rentExcerpt = rentExcerptScanner.useDelimiter("\\A").next();
     rentExcerptScanner.close();
 } catch (Exception e) {
     throw new InvalidParameterException("Bad file path" + e);
 }

 linePrinter(actressName, rentExcerpt.split("\\R"));
 break;
```
  } lineScanner.close(); } }

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