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4 cards from this section. Quick, good the night before a test.
What is a nested loop?
Think of real-life examples where one event happens within another.
How many times does this statement execute: 'System.out.println("Hello")' in the following code?
for (int i = 1; i <= 2; i++) {
for (int j = 1; j <= 3; j++) {
System.out.println("Hello");
}
}Count the number of times the inner loop runs.
What is the purpose of a nested loop?
Consider where you would use multiple loops.
A nested loop always has at least two levels.
Think of the definition of nested loops.
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'.
Remember to format output to show both row and column.
Consider a 10x10 grid. Optimize the nested loops to minimize time complexity while ensuring correct output for each cell. Discuss potential improvements.
Think about where you could eliminate unnecessary work.
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