Short Answer: 1. What two things must you normally specify in a variable declaration? a. variable type b. identifier i. int n; // type - int, identifier - n 2. What value is stored in uninitialized variables? c. is a variable that is declared but is not set to a definite known value before it is used.
Algorithm Workbench Review: 3. Write assignment statements that perform the following operations with the variables a, b, and c. d. Adds 2 to a and stores the result in b e. Multiplies b times 4 and stores the result in a f. Divides a by 3.14 and stores the result in b g. Subtracts 8 from b and stores the result in a ii. b = a + 2 iii. a = b * 4 iv. b = a / 3.14 v. a = b - 8 4. Assume the variables result, w, x, y, and z are all Integers, and that w=5, x=4, y=8, and z=2. What value will be stored in result in each of the following statements? h. Set result= x+y i. Set result= z*2 j. Set result=y/x k. Set result=y-z vi. result = x++ - y; vii. Answer -4 viii. result = 4 – 8 = -4 ix. result = ++w + y; x. Answer xi. w = w + 1 = 5 + 1 = 6 xii. result = 6 + 8 = 14 5. Write a pseudo code statement that declares the variable cost so it can hold real numbers. * Declare Real price= 0.00 * Display "the original price." * Input item original price * Display "price" 6. Write a pseudo code statement that declares the variable total so it can hold integers. Initialize the variable with the value 0. * Declare Real price= 0.00 * Display "the original price." * Input item original price * Display "price" 7. Write a pseudo code statement that assigns the value 27 to the variable count.