
Mastering Logic and Control Structures

Quiz
•
Computers
•
University
•
Easy
Usama Ahmad
Used 1+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the output of the following code: for (int i = 0; i < 3; i++) { for (int j = 0; j < 2; j++) { System.out.print(i + j + " "); } }?
0 1 2 3 3 4
1 2 2 3 3 4
0 1 1 2 2 3
0 1 1 2 2 4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain how variable scope affects the accessibility of a variable defined inside a loop.
A variable defined inside a loop is accessible globally.
A variable defined inside a loop is only accessible within that loop's scope.
A variable defined inside a loop can be accessed outside the loop after it ends.
A variable defined inside a loop is accessible in all functions.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Given the following code, what will be the final value of 'x'? int x = 5; for (int i = 0; i < 3; i++) { x += i; }
10
8
7
6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of the expression: (3 + 4 * 2) / (1 - 5) + 2?
-2
0.25
-0.75
1.5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you optimize a nested loop that iterates over a large dataset to improve performance?
Use nested loops for all operations
Ignore data filtering
Use hash maps for lookups, reduce loop iterations, and consider parallel processing.
Increase the number of iterations
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will be the output of the following code snippet: int a = 10; if (a > 5) { a += 5; } else { a -= 5; } System.out.println(a);?
5
15
10
20
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe a scenario where a variable defined in an outer loop is modified by an inner loop. What implications does this have?
Modifying a variable in an inner loop has no effect on the outer loop.
Variables in an outer loop are always constant during execution.
A variable in an outer loop can be modified by an inner loop, affecting the outer loop's outcome.
An inner loop cannot access variables from an outer loop.
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