To achieve a number of the whole number of the square 11

Note the input judgment, write more than a few if statements to determine whether the condition of the input data is satisfied

??

In addition, when exp is negative, the input base becomes 1.0/base instead of 1/base

??

So the return value is set to double,base is also set to double

??

In addition, you have to define the equal, and can not use = =, to determine whether the absolute value of the two-digit difference is within a certain range

??

Package myPower11;

??

public class MyPower11 {

Static Boolean equal (double num1,double num2)

{

if ((num1-num2>-0.0000001) &&num1-num2<0.0000001)

{

return true;

}

Else

{

return false;

}

}

Static double Mypower (double base, int exp) throws Exception {

Double result = 0;

if (equal (base,0.0) && Exp < 0) {

throw new Exception ("no sense");

}

if (equal (base,0.0) && exp >= 0) {

return 0;

}

if (base!=0&&exp>=0) {

Result=powercal (base, exp);

return result;

}

if (base! = 0 && Exp < 0) {

Return powercal (1.0/base,-exp);

}

return result;

??

}

??

Static double powercal (double base, int exp) {

double result = 1;

if (base! = 0 && Exp >= 0) {

for (int i = 0; i < exp; i++) {

Result *= base;

}

??

}

return result;

??

}

??

public static void Main (string[] args) throws Exception {

TODO auto-generated Method Stub

System.out.println (Mypower (2,-3));

}

??

}

? ?

To achieve a number of the whole number of the square 11