Chapter 19.5, Problem 23SCP

Explanation of Solution

Given code:

//definition of "longestLineLength"

public static int longestLineLength (String filename)

{

    /*return the file*/

    return Files.lines (filename)

    //convert the value

    .map (String::length)

    //call the "max ()" method

    .max()

}

Four problems in the given statements:

• The “Files.lines” method accepts a path, not a string.
• The “map” call should be “mapToInt”.
• The “max” call needs to be followed by a call to “getAsInt” because it returns an optional integer result...