Define a custom exception class named BinaryFormatException. The class will contain the following: a variable for the invalid binary number an overloaded constructor that stores the invalid binary number in the variable an accessor for the variable a method named getMessage the method has no parameters the method returns a string containing the invalid binary number

3. bob is arguing that if you use output feedback (ofb) mode twice in a row to encrypt a long message, m, using the same key each time, it will be more secure. explain why bob is wrong, no matter what encryption algorithm he is using for block encryption (15 points).

in 2007, floridians died in alcohol-related collisions.a.  501b.  1,051c.  5,015d.  10,839

Write a program that prompts the user to input a string. the program then uses the function substr to remove all the vowels from the string. for example, if str = "there", then after removing all the vowels, str = "thr". after removing all the vowels, output the string. your program must contain a function to remove all the vowels and a function to determine whether a character is a vowel.