编写一个方法，计算kkk^^kk (共n个k,n>0)的值。例如k=2,n=5则为22222。调用方法求s1=6+66+666+6666+66666

import java.util.Scanner;
public class Add{
static double m=0.0,sum=0.0;
public static void main(String args[]){
double k,n;
System.out.println("请输入k和n");
Scanner sc=new Scanner(System.in);
k=sc.nextDouble();
n=sc.nextDouble();
for(double i=1.0;i<n; i++){
m=m+print(k, i);
}
System.out.print(m);
}
static double print(double k1,double n1){
for(double i=1.0;i<n1 ;i++){
sum=sum*10+k1;
}
return sum;
}
}