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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a nested loop?
💡 Hint: Think of real-life examples where one event happens within another.
Question 2
Easy
How many times does this statement execute: 'System.out.println("Hello")' in the following code?
💡 Hint: Count the number of times the inner loop runs.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the purpose of a nested loop?
- To iterate over a single dimension
- To iterate over multiple dimensions
- To terminate a loop
💡 Hint: Consider where you would use multiple loops.
Question 2
A nested loop always has at least two levels.
- True
- False
💡 Hint: Think of the definition of nested loops.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a program that creates a 5x5 grid of numbers where each cell contains the respective row and column numbers. For instance, the 2nd row and 3rd column should output 'R2C3'.
💡 Hint: Remember to format output to show both row and column.
Question 2
Consider a 10x10 grid. Optimize the nested loops to minimize time complexity while ensuring correct output for each cell. Discuss potential improvements.
💡 Hint: Think about where you could eliminate unnecessary work.
Challenge and get performance evaluation