tugas bp1

 

import java.util.Scanner;

class sum

{

              public static void main (String[] args)

              {             

              Scanner ScannerQ= new Scanner (System.in);

              int angka = 0;

              int a = 2;

              int hasil = 0;

              System.out.print("masukan banyak deret penjumlahan=");

    angka = ScannerQ.nextInt();

    System.out.print("sum=");

    while(a<=angka*2)

                  {

                            System.out.print(a);

                                if (a<angka*2)

                                {

                                          System.out.print("+");

                                          }

                            hasil=hasil+a;

                     a=a+2;

       }

       System.out.println("");

       System.out.println("Sum="+hasil);

    }

}