3. (9 points; 3 points each) Write the siqnature for each of the methods described below. You do not need to write the method. a) The method will take three integer values and return the sum of the two larger values. Example: If the method is given 1,3 , and 5 the method would return 8(=3+5) b) The method will take two String objects and return a String produced when the given Strings are concatenated with the shorter String first and the longer String second. If the Strings are of the same length, then the first String given should be the first String in the result. Example: If the method is given "abcde" and "fgh", it will return "fghabcde". If the method were given "abc" and "def", the result would be "abcdef". c) The method will take a given prompt, a given integer sentinel, a given Scanner object (that has been previously declared and constructed) and will sum the values entered by the user and return the sum. Example: If the method is given the prompt "Enter positive integer values on a single line, ending with 0, the sentinel 0 , a Scanner that is declared and constructed to attach to the console, and the user enters the values "123450", then 15 will be returned