Exam 6: Loops

What is the output of the following code fragment? Int i = 1; Int sum = 0; While (i <= 11) { Sum = sum + i; I++; } System.out.println("The value of sum is " + sum);

How many times does the following code fragment display "Hi"? Int i = 10; While (i >= 0) { System.out.println("Hi"); I--; }

What will be printed by the statements below? Int a = 10; While (a > 5) { A = a - 2; System.out.print (a + " "); }

What is the last output line of the code snippet given below? Int i = 0; While (i < 10) { Int num = 1; For (int j = i; j > 1; j--) { System.out.print(j + " "); Num = num * 2; } System.out.println("***"); I++; }

What is the data type of the number generated by the Random.nextDouble() method?

What is the result when the following code is run? double x = 1; Double y = 1; Int i = 0; Do { Y = x / 2; X = x + y; I = i + 1; } While (x < 2.5); System.out.print(i + " ");

What is the output of the code snippet given below? String s = "abcde"; Int i = 1; While (i < 5) { System.out.print); I++; }

Which of the following for loops is illegal?

When hand tracing, drawing a line through the value stored in a variable means that

What is the output of the code snippet given below? String s = "abcde"; Int i = 1; Do { If (i > 1) { System.out.print); } } While (i < 5);

Which of the following loops will print the odd numbers between 0 and 20?

What is the output of the code below? for (int val = 0; val < 4; val ++) { Int sum = val; For (int num = 0; num < val; num++) { Sum = sum + num; } System.out.print (sum + " "); }

What does the method below return? Int findSomething (String str) { Int position = 0; While (position < str.length() && (str.charAt (position) != 'e')) { Position++; } Return position; }

Which of the following loops executes the statements inside the loop before checking the condition?

In the following code snippet, when does the execution of the program switch from the inner loop to the outer loop? Int i; Int j; For (i = 0; i <= 9; i++) { For (j = 1; j < 5; j++) { System.out.println("Hello"); } }

Which of the following code snippets will generate a random number between 0 (inclusive) and 79 (inclusive)? (Assume Random generator = new Random();)

Which of the following is the correct code snippet for throwing a pair of dice to get a sum of the numbers on two dice between 2 and 12 with different probabilities? (Assume Random generator = new Random();)

Which of the following code snippets displays the output exactly 10 times?

What is the output of the code snippet given below? Int i = 0; While (i != 11) { System.out.print(" " + i); I = i + 2; }

How many times does the loop execute in the following code fragment? Int i; For (i = 0; i < 50; i = i + 4) { System.out.println(i); }