Java大数处理

import java.io.*;
import java.math.*;
import java.util.*;
public class Main {
public static void main(String[] argc)
{
Scanner cin=new Scanner(new BufferedInputStream(System.in));
while(cin.hasNext())
{
BigDecimal x=cin.nextBigDecimal();
BigDecimal y=BigDecimal.ONE;
int n=cin.nextInt();
int i;
for(i=1;i<=n;i++)
{
y=y.multiply(x);
}
y=y.stripTrailingZeros(); //删除尾部零
String s=y.toPlainString(); //取消科学计数显示
if(s.substring(0,1).compareTo("0")==0) s=s.substring(1);
System.out.println(s);
}
}

}