অধ্যায় ৩ঃ ডাটা টাইপ, ভেরিয়েবল, অ্যারে, অপারেটর ও কন্ট্রোল স্টেটমেন্ট

 //Using  For Loop
public class FibonacciExample

{

	public static void main(String[] args)
	{
		// Set it to the number of elements you want in the Fibonacci Series
		 int maxNumber = 10;
		 int previousNumber = 0;
		 int nextNumber = 1;

	        System.out.print("Fibonacci Series of "+maxNumber+" numbers:");

	        for (int i = 1; i <= maxNumber; ++i)
	        {
	            System.out.print(previousNumber+" ");
	            /* On each iteration, we are assigning second number
	             * to the first number and assigning the sum of last two
	             * numbers to the second number
	             */


	            int sum = previousNumber + nextNumber;
	            previousNumber = nextNumber;
	            nextNumber = sum;
	        }
	}
}

import java.util.;

    public class series {

        public static void main( "String[ ] args ){

            int i, n, sum=0 ;

            Scanner in = new Scanner(System.in) ;

                System.out.print( "Enter number of n : " ) ;

                n = in.nextInt ( ) ;

                for( i = 2; i<=n; i=i+2) {

                    Sum = sum+i ;

                    System.out.print("The sum is : " +sum) ;

                }

        }

}