The following program opens test. txt and displays its contents. If nothing is placed in the blank, then the contents of the file is displayed double spaced. What should be placed on the blank so that the contents of the file is displayed without the extra blank lines

Sarah is having a hard time finding a template for her advertising business that she may be able to use at a later date and also make it available to her colleagues

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.

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