Question

Write a program to print 3,6,9,12....30 using while loop

Answer 1

$\huge\mathbb\purple{AnSwEr}$

Elements of a Loop are:-

• Intialisation
• Test expression
• Update statement
• Body of the loop.

Types of loop:-

• While loop( entry controlled loop)
• For loop ( entry controlled loop)
• Do while loop (exit controlled loop)

Syntax of while loop:-

$\sf \: initialzation \\ \sf \: \: while(test \: expression)$

{

$\sf \: body \: of \: the \: loop \\ \sf \: update \: statement \:$

}

Required program:-

i = 3

while(i <=30)

{

cout<<"\t <<i ;

i = i +3;

}

hope this helps..

Answer 2

Question:-

Write a program to display the series using while loop.

3 6 9 12...30

Program:-

class Series

{

public static void main(String args[])

{

int a=3;

while(a<=30)

{

System.out.print(a+" ");

a+=3;

}

}

}