CHALLENGE

ACTIVITY

$4\mathrm{.}2\mathrm{.}3$: Write a method that hides the characters in a string.

$541664\mathrm{.}3811828$ qx$3$zqy$7$

Write a method that hides the characters in a string, yielding a string of equal length wher

import java.util.Scanner;

public class Strings

$\{$

$\frac{?}{?}****$

Returns a string of asterisks of the same length as

a given string.

@param str a string such as "secret"

@return a string with each character of str changed to a $*****".$

$*/$

public static String hideCharacters$($String str$)$

$\{$

K Your code goes here $*/$

$\}$

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