in java Read a text file named on the command line. Present the following menu of operations to perform on the file

$1.$ Output the number of lines.

$2.$ Find lines containing an input string. Get input for a string, which may contain spaces. Count & output all lines that contain the input string.

$3.$ Find the longest line in the file. If $2$ or more lines are tied for the longest, show only the first one.