Final answer:
To iterate through a 2D array, you can use nested for loops, a single for loop for each row, or a for-each loop for the entire array.
Step-by-step explanation:
To iterate through the 2D array numarr={{1,2,3},{4,5,6,7},{8,9}}, there are multiple ways:
A. Use nested for loops for each array:
You can use nested for loops to iterate through each array and each element within the array.
B. Apply a single for loop for each row:
You can use a single for loop to iterate through each row of the 2D array.
D. Implement a for-each loop for the entire array:
You can use a for-each loop to iterate through each row and each element within the row.
To iterate through a 2D array like int[][] numarr = {{1,2,3},{4,5,6,7},{8,9}}, the most appropriate method is to use nested for loops for each array. The outer loop iterates over the rows, and the inner loop iterates over the elements in each row. This ensures that you visit every element in the 2D array systematically.
Using a single for loop for each row (Option B) may not be sufficient because you need to traverse both rows and columns. Utilizing a while loop (Option C) is less common and can be error-prone in this context. Implementing a for-each loop for the entire array (Option D) may not be suitable for 2D arrays, as it doesn't provide the necessary control over both dimensions.
In summary, nested for loops (Option A) are the standard and recommended approach for iterating through a 2D array like numarr.