Question

 

For example, suppose you had a program to determine if a number is positive, negative or zero. Read in a number and then use the if statement to determine if the number is positive (>0) or negative (<0) or zero (==0):

if (x>0)
//display positive message
else if (x<0)
   //display negative message
else
//display zero message

Answer 1

Example (1)- In this example suppose we have an integer array . and we want to display sum of all even value and sum of all odd value.

Our array is -

    //declare the array with 5 value

   Int a[5]={15,20,22,17,18}

  If(a[i]%2==0)

{

evenSum=Evensum+a[i];

Print the sum of even number in Array.

}

else

{

oddSum=oddSum+a[i];

Print the sum off odd number in Array

}

Example(2)- using if with AND operator

//if value of i is greater the 10 and less then 50 then go inside the if statement.we use And(&&) operator in this example so it will execute only when both condition are true

If(i>10 && i<50) {

   If(i%5==0)//if value of i is divisible by 5 then go inside the if statement

{

  Print i; //print value of i

}

}

Example (3)- using if with OR opetator

If(i>5) //if value of I is greater then 5 then go inside the if statement

{

//if value of i is equal to 6 or i is divisible by 2 then go inside if statement. We use or(||) operator in if statement it means if any one condition is true the this if statement will be execute

If(i==6 || I%2==0)

{

Print the value of i

}

}