Assignment of a float expression to a double variable involves what process? a. narrowing b. widening What is the value of variable x after the following code fragment executes? int x=2147483647; x=x+1 Answer: Widening generally is a safe operation. Select one: True False Evaluate the following Java expression: A+5 Do not use any spaces in your answer. Answe How would you express the following number in scientific notation in Java source code? 8.82310100 Do not put any spaces or parentheses in your answer. Answer All of the statements below accomplish the effect except for one. Which statement behaves differently from the others? a. count+t; b. count +=1; c. count =1+ count ; d. count = count +1; e. count =+1; What two-character sequence represents the new line character in a string literal or character literal? Do not use any spaces or quote marks. Given the following declaration: var scan = new java.util.Scanner (System.in); What method available to the scan object reads a double value from the keyboard? Do not use any spaces or parentheses in your answer. Answer: int rate =15 double val =25.78 String word = "hi" Move the System.out.printf control codes into their proper places to produce the output shown here: Not all control codes will be used