**Operators:**Operators are the symbols which tell the computer to execute certain mathematical or logical operations. A mathematical or logical expression is generally formed with the help of an operator.

**Aritmetic Operators:** C programming language/LoadRunner provides all basic arithmetic operators: +, -, *, / and %(Modulo).

**Relational Operators:** Relational operators are used when we have to make comparisons. C programming offers 6 relational operators.

**Logical Operators:** Logical operators are used when more than one conditions are to be tested and based on that result, decisions have to be made. C programming offers three logical operators. They are:

**Increment/Decrement Operators: **

C programming allows the use of **++** and **—** operators which are increment and decrement operators respectively. Both the increment and decrement operators are unary operators. The increment operator ++ adds 1 to the operand and the decrement operator – subtracts 1 from the operand. The general syntax of these operators are:

Increment Operator: x*++ or ++x*;

Decrement Operator:* x–or –x*;

In the example above, x*++ *simply means x*=x+1;* and *m–* simply means x*=x-1;*

For example,

X=10;

Y=++X;

In this case, the value of X and Y will be 6.

And,

X=10; Y=X++;

In this case, the value of Y will be 10 and the value of X will be 11.

**Boolean Expression**: A boolean expression is an expression that has relational

and/or logical operators operating on boolean variables. A boolean expression

evaluates to either *true* or *false*.

We will be discussing some boolean expression in the following section:

**Discussion From the class:**

**Operators and Conditional Statements in LoadRunner**

**Hopefully you understood the above lessons and solve the following:**

**Q1.** If a=-10, b=100, c=-5. Find the value for res = !( a<c && (b>=c*a)) .

**Q2.** If p = .5, q=.25, r =.75 and z=.3. Find the value of the following expression:

res =! (!(q<=p) ||(q>=r))

Modulo operator(%): Calculates the remainder of division operations.

For example: a= 12 and b=5. Then a%b =12%5= 2

x= 37 y= 8 then x%y= 37%8= 5.

**Q3.** r=12, s=4, n= 25, m= 8 find the value of res= ((r%s)>=0 && (n%m)<1))

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