The method longestStreak is intended to determine the longest substring of consecutive identical characters in the parameter str and print the result. For example, the call longestStreak("CCTTT!") should print the result "A 5" because the longest substring of consecutive identical characters is "". Complete the method below. Your implementation should conform to the example above.
public static void longestStreak(String str)

PLEASE USE SUBSTRING

Dereck works for long hours on his computer.  he frequently experiences physical strain by the end of the day because he does not follow an important rule of ergonomics with respect to the use of keyboards.  which of the following actions of dereck could lead to physical strain? a.  placing the keyboard exactly in front of him while typingb.  keeping hands and wrists straight while typingc.  using wrist pads throughout the dayd.  pounding at the keys on the keyboard while typinge.  resting his hands on the keyboard when he is not typing