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Exploring Control Structures in Programming: If, Switch, and Loops with Practical Exercises

This guide covers essential control structures in programming, including if statements, switch-case statements, and repetition control structures like for, while, and do-while loops. It includes practical exercises to reinforce learning, such as determining if a number is odd or even, identifying the smallest of three numbers, checking if a year is a leap year, reversing a three-digit number, and converting decimal numbers to binary. Further exercises on calculating the area of a circular ring and characterizing earthquakes based on their Richter scale number are also provided.

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Exploring Control Structures in Programming: If, Switch, and Loops with Practical Exercises

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Presentation Transcript

  1. Today’s Agenda • Examples on if statement • Switch case statement • Repetition Control Structure • for statement • while statement • do-while statement

  2. Exercise: on if-else • Write a program to determine whether a number is odd or even and print the appropriate message. • Write a program to find the smallest of the three numbers. • Write a program to determine whether the inputted year is a leap year or not.

  3. Write a program to reverse a three digit decimal number and determine whether the two numbers are equal or not. • Write a program to add the digits of a number. Let the number 4 digit only. • Write a program to convert a decimal number ranging from 1 to 7 into binary.

  4. Exercise: on if-else • Write a program to calculate area of a circular ring. • Write a program that takes the x-ycoordinates of a point in the Cartesian plane and prints a message telling either an axis on which the point lies or the quadrant in which it is found.

  5. Write a program to implement the following decision table to characterize an earth quake based on its Richter scale number.

  6. Switch evaluateexpression = const1? • switch (expression) • {case const1: block-1; break;case const2: block-2; break;default: block-3; • } • next_statement block-1 T F = const2? block-2 T F block-3

  7. Switch Example • /* same as month example for if-else */ • switch (month) { case 4: case 6: case 9: case 11: printf(“Month has 30 days.\n”);break; case 1: case 3: case 5: • case 7: • case 8: • case 10: • case 12: • printf(“Month has 31 days.\n”);break; • case 2: printf(“Month has 28 or 29 days.\n”);break; default: printf(“Don’t know that month.\n”); • }

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