Conditional Operator in C

Conditional operator is a Ternary operator available in list of operators in the C language. It requires three operands. Conditional statements are used to make decision based upon condition. Ternary operator requires two special symbols (‘?’ and ‘:’) to express it.

The program execution of conditional operator is just like if-else conditional statement.

Syntax of conditional operator

Expression 1? Expression 2: Expression 3;

Working of Ternary Operator

As in Expression 1? Expression 2:  Expression3. Expression 1 is the Boolean expression. If Expression1 evaluates to 0 which is a Boolean expression then that simply means FALSE and if the Expression1 evaluates to 1 this simply means TRUE therefore Expression3 or Expression2 will get evaluated based on Expression1.

For example

#include<stdio.h>

int main ()

{

    int a, c;

    printf("Enter the number  ");

    scanf("%d", &a);

    c = (a>5) ? printf("True") : printf("False");

}

Output:

String Format in Python

Formatting string enables the capability to add dynamic content or string to it in an easy way. It allows to update contents in a string in simpler way.

String Format using format () method

Syntax: template_string.format(positional_args, keyword_args) 

The template string contains the replacement fields which can be replaced using the positional_args and keyword_args used in the method. The method returns the formatted string.

In the template string, the replacements fields are enclosed within curly braces “{  }”. Rest of the string content remains unchanged.

Using positional arguments

print('{0} {1} the {2} nicely'.format('This', 'formats', 'string'))

 

Here, <template_string> is '{0} {1} the {2} nicely'. The replacement fields are {0}, {1}, and {2} with zero-based positional arguments 'This', 'formats', 'string'. The replacements fields are replaced with the corresponding positional arguments by the format method.

 

Using keyword arguments

print('{name} is {age} years old'.format(name='Python', age= 30))

 

Here, the replacement fields are {name}, {age}and the corresponding keyword arguments with values. Each fields are replaced with corresponding keyword argument values.