void main() { Console.Write Line("Enter a value"); int a = convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter b value") int b = convert.ToInt32(Console.ReadLine());
if(b == 0) { Console.WriteLine("Please enter b as other than zero"); b = Convert.ToInt32(Console.ReadLine()); }
int c = a/b; Console.WriteLine("division result is " +c)
Console.ReadLine(); } Output: Enter a value 10 Enter b value 0 Please enter b as other than zero 2 Division result is 5
b. if else: Syntax:if (<Condition>) Statement 1; else Statement 2;
Eg: for comparing two numbers: void main() { Console.Write Line("Enter i value"); int i = convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter j value") int j = convert.ToInt32(Console.ReadLine());
if(i > j) Console.WriteLine(" i is greater than j "); else Console.WriteLine(" j is greater than i ");
Console.ReadLine(); } Output: Enter i value 10 Enter j value 5 i is greater than j
Eg: void main() { Console.Write Line("Enter i value"); int i = convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter j value") int j = convert.ToInt32(Console.ReadLine());
if(i > j) Console.WriteLine(" i is greater than j "); Console.WriteLIne("i value is " +i); else Console.WriteLine(" j is greater than i "); Console.WriteLIne("j value is " +j); Console.ReadLine(); } Output: Enter i value 10 Enter j value 10 i is greater than j i value is 10
if elseif: Whenever we want to check the multiple conditions then we go for "if-elseif". Syntax:if(<condition>) statement1; elseif(<condition2>) statement2; elseif(<condition3>) statement3; else statement4;
Eg: void main() { Console.Write Line("Enter i value"); int i = convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter j value") int j = convert.ToInt32(Console.ReadLine());
if(i > j) Console.WriteLine(" i is greater than j "); elseif(j > i) Console.WriteLine(" j is greater than i "); else Console.WriteLine(" i is equal to j "); Console.ReadLine(); } Output: Enter i value 10 Enter j value 10 i is equal to j
Eg: For age related program: void main() { Console.WriteLine("Enter your age"); int age = convert.ToInt32(Console.ReadLine());
if (age >= 58) Console.WriteLine("You are a senior citizen");
elseif (age >= 25) Console.WriteLine("You are a working citizen");
elseif (age >= 16) Console.WriteLine("You are a college student");
elseif (age >= 4) Console.WriteLine("You are a school going boy");
elseif (age >= 1) Console.WriteLine("You are a playing kid ");
else Console.WriteLine("Invalid age");
Console.ReadLine(); } Output: Enter your age 58 Your are a senior citizen