Posts tagged

Control Structures

Loops in Programming: Repeating with For and While

Explains the two main loop types in Python and when to use each. For loops iterate over sequences or use range() to repeat a fixed number of times. While loops run as long as a condition holds, making them suitable for open-ended repetition where the iteration count isn't known upfront. Covers nested loops for working with 2D data like matrices, and the break and continue statements for fine-grained loop flow control. Practical exercise generates a full multiplication table using nested for loops.

Control Structures: Mastering Program Flow

Introduces conditional control structures as the mechanism for making programs react to different inputs. Explains if, else, and elif chains with progressively richer examples (voting eligibility check, multi-grade letter assignment), then compares Python's approach to switch/case statements found in C and Java, showing how to replicate the same logic with a dictionary lookup. Ends with a graded letter assignment exercise that reinforces chaining multiple elif conditions to map numeric scores to A through F grades.