Exam 6: Loops

Which statement about this code snippet is accurate? Int years = 50; Double balance = 10000; Double targetBalance = 20000; Double rate = 3; For (int i = 1; i <= years; i++) { If (balance >= targetBalance) { I = years + 1; } Else { Double interest = balance * rate / 100; Balance = balance + interest; } }

When designing storyboards, it is a good idea to use different colors to

What for loop can be used in the indicated area so the code will print: **** *** ** * For (int val = 0; val < 4; val ++) { System.out.print ("+"); // Put for loop here { System.out.print ("*"); } System.out.println (); }

When hand-tracing the loop in the code snippet below, which variables are important to evaluate? Int i = 10; Int j = 5; Int k = -10; Int sum = 0; While (i > 0) { Sum = sum + i + j; I--; System.out.println("Iteration: " + i); }

For which input values will the following loop not correctly compute the maximum of the values? Scanner in = new Scanner (System.in); Int max = 0; While (in.hasNextInt()) { Int value = in.nextInt(); If (value > max) { Max = value; } }

What is the output of the following code snippet? Int f1 = 0; Int f2 = 1; Int fRes; System.out.print(f1 + " "); System.out.print(f2 + " "); For (int i = 1; i < 10; i++) { FRes = f1 + f2; System.out.print(fRes + " "); F1 = f2; F2 = fRes; } System.out.println();

What is the output of the code snippet given below? String s = "aeiou"; Int i = 0; Do { System.out.print); I++; If (i >= 3) { I = 5; } } While (i < 5);

What is the output of the following code snippet? Int i = 1; While (i < 20) { System.out.print(i + " "); I = i + 2; If (i == 15) { I = 19; } }

Suppose that a program asks a user to enter multiple integers, either positive or negative, to do some calculation. The data entry will stop when the user enters a certain value to indicate the end of the data. What value should the code use as the sentinel?

What is the output of this code snippet? Int s = 1; Int n = 1; Do { S = s + n; System.out.print(s + " "); N++; } While (s < 3 * n);

What changes do you need to make in the following code snippet to display "Let us learn Java" exactly 10 times? Int i = 0; While (i <= 10) { System.out.println("Let us learn Java"); I++; }

What is the output of the following loop? Int s = 1; Int n = 1; Do { S = s + n; N++; } While (s < 10 * n); System.out.println(s);

Which statement is correct about the execution of the loop in the following code fragment? double num; Int incr = 0; Scanner reader = new Scanner(System.in); Do { Incr = incr + 1; System.out.println("Please enter a number (0 when done): "); Num = reader.nextDouble(); } While (num != 0); System.out.println("" + incr);

How many times does the following loop execute? for (double d = 1; d != 10; d++) { D = d / 3; System.out.print(d + " "); }

What will be printed by the statements below? Int val = 1; Int sum = 0; While (val < 5) { Sum = 0; Sum = sum + val; Val++; } System.out.print (sum);

What will be the output of the following code snippet? boolean token = false; While (token) { System.out.println("Hello"); }

What is the output of the following code snippet? Int i = 1; While (i <= 10) { System.out.println("Inside the while loop"); I = i + 10; }

How many times does the code snippet given below display "Loop Execution"? Int i = 1; While (i != 10) { System.out.println ("Loop Execution"); I++; }

Which error type does the "off-by-one" error belong to?

What values does counter variable i assume when this loop executes? for (int i = 20; i >= 2; i = i - 6) { System.out.print(i + ","); }