Programming C Part 02
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The document is a report from Dhaka University of Engineering & Technology detailing an experiment on C operators, including arithmetic, relational, logical, bitwise, and assignment operators. It provides examples of each operator type along with sample code outputs. The conclusion emphasizes the practical importance of understanding these operators for future programming tasks.
Programming C Part 02
- 1. Dhaka University of Engineering & Technology, (DUET) Gazipur Department of Textile Engineering Course NO: CSE- 3702 Course Name: Computer Applications and Programming (Sessional) Date of Submission: 28-03-2021 Experiment No: 02 Name of the Experiment: Introduction to C operator. Submitted To Mr. Khawja Imran Masud Lecturer, Department of CSE, DUET Submitted By Name: Md. Rasel Mondal Student ID: 175013 Year/Semester: 3/1 Session: 2019-20
- 2. Report No: 02 Report Name: Introduction to C operator. 1.0 Objectives: 1. To know about C operator. 2.0 Theory: 2.1 C- Operator: An operator is a symbol that tells the compiler to perform specific mathematical or logical functions. C language is rich in built-in operators and provides the following types of operators – • Arithmetic Operators • Relational Operators • Logical Operators • Bitwise Operators • Assignment Operators 2.1.1 Arithmetic Operators: The following table shows all the arithmetic operators supported by the C language. Assume variable A holds 20 and variable B holds 10, then − Operator Description Example + Adds two operands. A + B = 30 − Subtracts second operand from the first. A − B = 10 * Multiplies both operands. A * B = 200
- 3. / Divides numerator by de-numerator. A/B = 2 % Modulus Operator and remainder of after an integer division. A%B = 0 ++ Increment operator increases the integer value by one. A++ = 21 -- Decrement operator decreases the integer value by one. B-- = 9 Example: #include <stdio.h> int main() { int a = 20, b= 10, c; c = a + b; printf("a+b= %dn", c ); c = a - b; printf("a-b= %dn", c ); c = a * b; printf("a*b= %dn", c ); c = a / b;
- 4. printf("a/b= %dn", c ); c = a % b; printf("a%b= %dn", c ); c =++a; printf("a++= %dn", c ); c =--b; printf("b--= %dn", c); return 0; } Output: 2.1.2 Relational Operators: The following table shows all the relational operators supported by C language. Assume variable A holds 20 and variable B holds10 then − Operator Description Example
- 5. == Checks if the values of two operands are equal or not. If yes, then the condition becomes true. (A == B) is not true. != Checks if the values of two operands are equal or not. If the values are not equal, then the condition becomes true. (A!= B) is true. > Checks if the value of left operand is greater than the value of right operand. If yes, then the condition becomes true. (A > B) is true. < Checks if the value of left operand is less than the value of right operand. If yes, then the condition becomes true. (A < B) is not true. >= Checks if the value of left operand is greater than or equal to the value of right operand. If yes, then the condition becomes true. (A >= B) is true. <= Checks if the value of left operand is less than or equal to the value of right operand. If yes, then the condition becomes true. (A <= B) is not true. Example: #include <stdio.h> int main() { int a=20, b=10, c; c =a== b; printf("c =a==b %dn", c);
- 6. c =a<b; printf("c =a<b %dn", c); c =a>b; printf("c =a>b %dn", c); c =a<=b; printf("c =a<=b %dn", c); c =a>=b; printf("c= a>=b %dn", c); return 0; } Output: 2.2.3 Logical Operators: Following table shows all the logical operators supported by C language. Assume variable A holds 1 and variable B holds 0, then − Operator Description Example
- 7. && Called Logical AND operator. If both the operands are non- zero, then the condition becomes true. (A && B) is false. || Called Logical OR Operator. If any of the two operands is non-zero, then the condition becomes true. (A || B) is true. ! Called Logical NOT Operator. It is used to reverse the logical state of its operand. If a condition is true, then Logical NOT operator will make it false. !(A && B) is true. Example: #include <stdio.h> int main() { int a=1, b=0, c; c=a&&b ; printf("a&&b= %dn",c ); c=a||b ; printf("a||b= %dn",c ); c= !(a&&b) ; printf("!a&&b= %dn",c); return 0; } Output:
- 8. 2.2.4 Bitwise Operators: The following table lists the Bitwise operators supported by C. Assume variable 'A' holds 60 and variable 'B' holds 13, then − Operator Description Example & Binary AND Operator copies a bit to the result if it exists in both operands. (A & B) = 12, i.e., 0000 1100 | Binary OR Operator copies a bit if it exists in either operand. (A | B) = 61, i.e., 0011 1101 ^ Binary XOR Operator copies the bit if it is set in one operand but not both. (A ^ B) = 49, i.e., 0011 0001 Example: #include <stdio.h> int main()
- 9. { int a= 60; /* 60 = 0011 1100 */ int b = 13; /* 13 = 0000 1101 */ int c; c = a & b; /* 12 = 0000 1100 */ printf("a&b %dn",c ); c = a | b; /* 61 = 0011 1101 */ printf("a|b %dn", c ); c = a ^ b; /* 49 = 0011 0001 */ printf("a^b %dn", c ); return 0; } Output: 2.1.5 Assignment Operators: The following table lists the assignment operators supported by the C language − Operator Description Example
- 10. = Simple assignment operator. Assigns values from right side operands to left side operand C = A + B will assign the value of A + B to C += Add AND assignment operator. It adds the right operand to the left operand and assign the result to the left operand. C += A is equivalent to C = C + A -= Subtract AND assignment operator. It subtracts the right operand from the left operand and assigns the result to the left operand. C -= A is equivalent to C = C - A *= Multiply AND assignment operator. It multiplies the right operand with the left operand and assigns the result to the left operand. C *= A is equivalent to C = C * A /= Divide AND assignment operator. It divides the left operand with the right operand and assigns the result to the left operand. C /= A is equivalent to C = C / A Example: #include <stdio.h> int main() { int a=20, c ;
- 11. c = a; printf("c = %dn", c ); c += a; printf("c+ = %dn", c ); c -= a; printf(" c- = %dn", c ); c *= a; printf(" c* = %dn", c ); c /= a; printf(" c/ = %dn", c ); return 0; } Output: 2.2 Lab Assessment Task: 2.2.1 Write a program to convert temperature from Celsius to Fahrenheit. #include <stdio.h> int main()
- 12. { int celsius, fahrenheit; printf("Enter temperature in Celsius: "); scanf("%d", &celsius); /* celsius to fahrenheit conversion formula */ fahrenheit = (celsius * 9 / 5) + 32; printf("%d Celsius = %d Fahrenheit", celsius, fahrenheit); return 0; } Output: 2.2.2 Write a program to Calculate the area of a circle. #include <stdio.h> int main() { float radius, area;
- 13. printf("Enter the radius of a circle:"); scanf("%f", &radius); area = 3.1416*radius*radius; printf("Area of the circle. %.4f", area); return 0; } Output: 3.0 Conclusion: In this Experiment we know about C operators like Arithmetic, Relational, Logical, Bitwise and Assignment operator. I hope this experiment will help in my practical life.