JAVA第十周实验封装一类Java对象，计算两个大整数（如123456789123456789123456789和987654321987654321987654321）的和、差、积和商，并计算一个大

问题描述：封装一类Java对象，计算两个大整数（如123456789123456789123456789和987654321987654321987654321）的和、差、积和商，并计算一个大整数的因子个数（因子中不包括1和大整数本身）。

package slj.com;
import java.math.*;
public class Maxnumber {
	public static void main(String[] args) {
BigInteger a=new BigInteger("123456789123456789123456789"),
           b=new BigInteger("987654321987654321987654321"),
           c=new BigInteger("0"),
           d=new BigInteger("0"),
e=new BigInteger("0"),
f=new BigInteger("0"),
S=new BigInteger("0"),
ONE=new BigInteger("1"),
ZERO=new BigInteger("0"),
i=ONE;
           c=a.add(b);
           d=a.subtract(b);
           e=a.multiply(b);
           f=a.divide(b);
           System.out.println(a+"+"+b+"="+c);
           System.out.println(b+"-"+a+"="+d);
           System.out.println(a+"*"+b+"="+e);
           System.out.println(a+"和"+b+"的商："+f);
           System.out.println(a+"的因子为：");
           while(i.compareTo(a)<0){
        	   i=i.add(ONE);
        	   if(ZERO.equals(a.remainder(i))){
        		   System.out.print(i+" ");
        	   }
           }

	}
}

运行结果：

123456789123456789123456789+987654321987654321987654321=1111111111111111111111111110
987654321987654321987654321-123456789123456789123456789=-864197532864197532864197532
123456789123456789123456789*987654321987654321987654321=121932631356500531591068431581771069347203169112635269
123456789123456789123456789和987654321987654321987654321的商：0
123456789123456789123456789的因子为：
3 9 27 757 2271 3607 3803 6813 10821 11409 20439 32463 34227 97389 102681 2730499 2878871 8191497 8636613 13717421 24574491 25909839 41152263 73723473 77729517 123456789