IT1808 Operators and Expressions PDF

IT1808 Operators and Expressions Operators and Expressions Operators are the symbols that represent a specific mathematical or logical processing in programming. Operators specify which operations to perform on operands. The following are some of the...

IT1808 Operators and Expressions Operators and Expressions Operators are the symbols that represent a specific mathematical or logical processing in programming. Operators specify which operations to perform on operands. The following are some of the operators used in C#: Arithmetic Operators Logical Operators Relational Operators Assignment Operators Arithmetic Operators – These are operators used in performing mathematical operations on numerical values. Table 1 shows the basic arithmetic operators on C#. Assume the following variable declarations: int a = 11, b = 5; Operator Description Example Return value + Adds two (2) operands a + b 16 - Subtracts the second operand from the first operand a – b 6 * Multiplies both operands a * b 55 / Divides the first operand by second operand a / b 2 % Modulus operator; returns the remainder after dividing first operand by second a % b 1 operand Table 1. C# arithmetic operators (Gaddis, 2016) Relational Operators – These are used to determine the relationship between operands of numeric values and generate a decision on that base. These return Boolean values true and false. Table 2 shows the relational operators on C#. Assume the following variable declarations: int a = 11, b = 5; Operator Description Example Return value > Determines if the value of the first operand is greater than the value of the second a > b true operand—if yes, it returns true; otherwise, false. < Determines if the value of the first operand is less than the value of the second a < b false operand—if yes, it returns true; otherwise, false. >= Determines if the value of the first operand is greater than or equal to the value of a >= b true the second operand—if yes, it returns true; otherwise, false.