When is a switch statement better than multiple if statements

by Dinesh Thakur Category: Control Structures

switch statement is generally best to use when you have more than two conditional expressions based on

a single variable of numeric type. For instance, rather than the code

C Program Sum of Digits of a Given Integer Number with do-while loop

by Dinesh Thakur Category: Control Structures

A program to determine the sum of digits of a given non-negative integer number using a while loop is presented in Program. The program segment given below does the same thing using a do...while loop.

C Program for GCD using Euclidâ€™s algorithm

by Dinesh Thakur Category: Control Structures

Let us use variables m and n to represent two integer numbers and variable r to represent the remainder of their division, i. e., r = m % n. Euclid's algorithm to determine the GCD of two numbers m and n is given below and its action is illustrated form= 50 and n = 35.

C program to sum the series 1+1/2 + 1/3...+ 1/n

by Dinesh Thakur Category: Control Structures

is a default case necessary in a switch statement

by Dinesh Thakur Category: Control Structures

No, but it is not a bad idea to put default statements in switch statements for error- or logic-checking

purposes. For instance, the following switch statement is perfectly normal:

What are the limitations with switch statement

by Dinesh Thakur Category: Control Structures

Switch statement is a powerful statement used to handle many alternatives and provides good presentation for C program. But there are some limitations with switch statement which are given below:

C Program Prime factors of a given number

by Dinesh Thakur Category: Control Structures

As the name indicates, the prime factors of a given number are its factors that are also prime numbers, e.g., prime factors of 30 are 2, 3 and 5 but not 1, 6, 10, 15 and 30. One or more prime factors of a given number may repeat, e. g., prime factors of 120 are 2, 2, 2, 3 and 5.

C program to calculate tax, given the following conditions

by Dinesh Thakur Category: Control Structures

1. if income is less thn, 1,50,000 then no tax
2. if taxable income is in the range 1,50,001-300,000 then charge 10% tax
3. if taxable income is in the range 3,00,001-500,000 then charge 20% tax
4. if taxable income is above 5,00,001 then charge 30% tax.

C Program Date is Valid or Not

by Dinesh Thakur Category: Control Structures

Let us use variables dd,mm and yy (all of type int)to represent the day, month and year in a given date. The given date is valid only if year (yy)is non-zero, month (mm)is in the range 1 to 12 and day of month (dd) is in the range 1 to mdays, the number of days in a given month mm. An algorithm to determine the validity of a given date is given below.

C Program for print a name of color that start with a given character

by Dinesh Thakur Category: Control Structures

The program segment given below accepts a character from the keyboard and prints the name of the corresponding color, e. g., if the user enters character R, it prints Red. However, it handles only three colors, namely, red, green and blue.

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