iZinked/HHN/%C3%9C2/src/SumSquares.java

import java.math.BigInteger;

/*
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/**
 *
 * @author LH
 */
public class SumSquares
{
    public static void main(String[] args) throws Exception
    {
        long i1 = InteractiveIO.promptForLong("Zahl bitte");
        long i2 = InteractiveIO.promptForLong("Zweite Zahl bitte");
        long b = 0;
        if(i1>i2)
        {
            b=i1;
            i1=i2;
            i2=b;
            
        }
        
        BigInteger acc = new BigInteger("0");
            //zähler von woanderst :P
        for (; i1 <= i2; i1++)
        {
            acc = acc.add(BigInteger.valueOf(i1).multiply(BigInteger.valueOf(i1)));
        }
        InteractiveIO.write("Ergebnis: "+acc);
    }
}