Exam 4: Loops

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; }

What is the output of the following code snippet? Int i = 1; While (i < 10) { System.out.print(i + " "); I = i + 2; If (i == 5) { I = 9; } }

What is the first and last value of i to be displayed by the following code snippet? Int n = 20; For (int i = 0; i <= n; i++) { For (int j = 0; j <= i; j++) { System.out.println("" + i); } }

Which for loop prints data across each row in the following code snippet? Int i; Int j; For (i = 1; i <= 3; i++) { For (j = 1; j <= 3; j++) { System.out.print("X"); } System.out.println(""); }

What is the output of the code snippet given below? Int i = 0; While (i != 11) { System.out.print(i + " "); I = i + 3; }

How many times does the following loop execute? Int i = 0; Boolean found = false; While (i < 100 && !found) { i++; System.out.print(i + " "); int j = i * i; if ((i * i * i) % j == j) { found = true; } }

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

What is the output of the code snippet given below? String s = "12345"; Int i = 1; Do { If (i > 1) { System.out.print); } } While (i < 5);

What is the output of this loop? int i = 0; boolean found; while (i < 20 && !found) { int sum = i * 2 + i * 3; System.out.print(sum + " "); if (sum > 50) { found = true; } i++; }

Which of the loop(s) test the condition after the loop body executes? I. for loop II. while loop III. do loop

What is the output of this code snippet? String str = "ABCabc"; Char ch; Int i = 0; While (i < str.length()) { Ch = str.charAt(i); If (Character.isLowerCase(ch)) { System.out.print(i + " "); } Else { I++; } }

How many times will the following loop run? Int i = 0; While (i < 10) { System.out.println(i); I++; }

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

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

What does the following code snippet print? int a = 120; int b = 90; int n1 = Math.abs(a); int n2 = Math.abs(b); int result = 1; for (int k = 1; k <= n1 && k <= n2; k++) { if (n1 % k == 0 && n2 % k == 0) { result = k; } } System.out.println(result);

Which loop does not check a condition at the beginning of the loop? I. The do loop II. The while loop III. The for loop

How many times does the following loop run? Int i = 0; Int j = 1; Do { System.out.println("" + i + ";" + j); I++; If (i % 2 == 0) { J--; } } While (j >= 1);

Which of the following loop(s) should be used when you need to ask a user to enter one data item and repeat the prompt if the data is invalid? I. for loop II. while loop III. do loop

What will be the output of the following code snippet? Boolean token1 = true; While (token1) { For (int i = 0; i < 10; i++) { System.out.println("Hello"); } Token1 = false; }

What does the following code do? Int sum = 0; Final int count = 1000; For (int i = 1; i <= count; i++) { Sum = sum + (int) (Math.random() * 101); } System.out.println(sum / count);