Step-by-step solution file
Course: 91 Program 1 Write a C program that reads a single
Write a C program that reads a single integer value from the command line. It will come into your program as argv. Remember that argv?s type is a pointer to a character that begins a sequence of characters that end in a null byte (i.e., null terminator). In other words, it is what is agreed upon as a string. String is not a base type within the C language.
The number you are getting though argv could be either a negative number, a positive number, or zero. Your program should call the absolute value function ? abs ? and it then prints out the absolute value of the number entered. Browse Appendix D to determine which header file you should include. Don?t create your own absolute value function. Check out the atoi function as well. For example,
$ ./assignment04pe01 -6 would cause 6 to be printed. $ ./assignment04pe01 4 would cause 4 to be printed.
Write a C program that prints the number of command line arguments. This is the number that is stored in the argument: argc. For example,
Programming Exercise 2: argc
$ ./assignment04pe02 $ ./assignment04pe02 511 Mel Ott Life is good $ ./assignment04pe02 Jem and Scout
Name your program assignment04pe02.c
would print out 1 would print out 7 would print out 4
Read an integer or floating point value from the command line. It will come into your program as argv. Remember that argv?s type is a pointer to a character that begins a sequence of characters that end in a null byte. In other words, it is what is agreed upon as a string. String is not a base type within the C language.
$ ./assignment04pe03 4.3
prints out the trigonometric sine value of the number represented by argv. You would do this by calling the proper functions that are found in Appendix D of your textbook. Check out the atof function.
Name your program assignment04pe03.c 1/2
The area of a rectangle is its length times its height. Write a C program that inputs two floating point numbers from the keyboard that represent the length and the height of a rectangle. Your program should output the area of the rectangle. If you use the type double to declare your variables, you will need to use the %lf format code with scanf. See the back cover pages of your book. If you use the type float to declare your variables, you will need to use the %f format code with scanf. The function printf, on the other hand, use %f for both double and float types. These little tidbits are in your textbook.
Name your program assignment04pe04.c
This question was answered on: Feb 21, 2020
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