HomeworkUnit 8 Assignment

Short Answer 6-10 page 213

6. What is an infinite loop? Write the code for an infinite loop.
An infinite loop is a sequence of instructions in a computer program which loops endlessly.
While keepgoing ==”y”
7. A For loop looks like what other loop in a flowchart?
It looks the while loop.
8. Why is it critical that accumulator variables are properly initialized?
Accumulator variables should be properly initialized to be sure that it does not contain garbage.
9. What is the advantage of using a sentinel?
The advantage of a sentinel automatically marks the end of the list for you.
10. Why must the value chosen for use as a sentinel be carefully selected?
It must be carefully selected to be sure it doesn’t get mistaken as a regular value in the list.
Algorithm 3, 4, 9, and 10 page 213

3. Design a For loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50 . . . 1000
For(int i = 0; i <=1000; i += 10)
System.out.print(i + “,”);
4. Design a loop that asks the user to enter a number. The loop should iterate 10 times and keep a running total of the numbers entered.
Scanner k = new Scanner(System.in); int total = 0;
For(int i = 0; i < 10; i ++){
System.out.println(“Enter a number:”);
Total += k.nextlnt();}
9. Convert the following While loop to a For loop: Declare Integer count = 0 While count < 50 Display " The count is ", count Set count = count + 1 End While

10. Convert the following For loop to a While loop: Declare Integer count For count = 1 To 50 Display count End For
Declare integer count
Count = 1
While count <= 50
Display count
Count = count + 1
End