Experiment 7: Formatted Input/Output(Part-I)

1.0. Objective and Scope

In this experiment important print formatting techniques in C programming language will be

examined.

1.1. Before the experiment

1.2. Implementation of the experiment

a) Write a printf statement for each of the following:

Print 1.234 in a 9-digit field width preceding zeros

Print 123.456789 in exponential notation with a sign (- or +) and 3-digits precision.

Print unsigned integer 40000 left justified in a 15-digit field with 8-digit.

b) Write what each of the following statements prints. If statement is incorrect indicate why.

printf( “%-10d\n”, 10000 );

printf( “%c\n”, “This is a string” );

printf( “%10.2E\n”, 444.93738 );

printf( “%10.2g\n”, 444.93738 );

printf( “%d\n”, 10.987 );

2

c) Write a program that converts integer Fahrenheit temperatures from 0 to 212 degrees to floating-

point Celsius temperatures with 3 digits of precision. Perform the calculation using the formula

celsius = 5.0 / 9.0 * ( fahrenheit - 32 );

Note: The output should be printed in two right-justified columns of 10 characters each, and the

Celsius temperatures should be preceded by a sign for both positive and negative values.

d) Write a program that uses the conversion specifier g to output the value 9876.12345. Print the value

with precisions ranging from 1 to 9.

1.3. Results

Write a report including what you have learned, your comments and answers of questions in the

experiment. (The report will be given to the one who is responsible of the experiment in the beginning

of the next lab.)