import java.util.Scanner;
public class sum
{
public static void main (String[] args)
{
Scanner Sum= new Scanner (System.in);
int angka = 0;
int nilai= 2;
int hasil = 0;
System.out.println("Masukkan sum deret=");
angka = Sum.nextInt();
System.out.print("sum=");
while(nilai<=angka*2)
{
System.out.print(nilai);
if (nilai {
System.out.print("+");
}
hasil=hasil+nilai;
nilai=nilai+2;
}
System.out.println("");
System.out.println("Sum="+hasil);
}
}









Package sum;