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Never had java before so i need some help. This is for a homework assignment.
I got 3 function prototypes: 1. int pow(int int)
2. double pow(double double)
3. double pow(int double)
int x;
double y;
x=pow(2,3)
y=pow(2,3)
x=pow(2,3.2)
y=pow(2,3.2)
x=pow(2.1,3)
y=pow(2.1,3)
x=pow(2.1,3.2)
y=pow(2.1,3.2)
I want to know for every pow call what function is called or is it illegal?
in c++ i got {1,1,3,3,illegal,illegal,2,2}
Never had java any tips on how java works?
Quote:
Originally posted by abcdefg
Never had java before so i need some help. This is for a homework assignment.
I got 3 function prototypes: 1. int pow(int int)
2. double pow(double double)
3. double pow(int double)
int x;
double y;
x=pow(2,3) <-- ok
y=pow(2,3) <-- ok
x=pow(2,3.2) <-- not ok
y=pow(2,3.2) <-- ok
x=pow(2.1,3) <-- not ok
y=pow(2.1,3) <-- ok
x=pow(2.1,3.2) <-- not ok
y=pow(2.1,3.2) <-- ok
I want to know for every pow call what function is called or is it illegal?
in c++ i got {1,1,3,3,illegal,illegal,2,2}
Never had java any tips on how java works?
thanx for tha help i had no clue book was worthless
Unless the narrowing conversions are made explicit(as they have to be since there is no implicit narrowing conversions in Java only implicit widing conversions) your code will fail to compile. Without the int pow(int i, int k) method the first call in red has to have an explicit type conversion since bolth methods return a double.
Code:
public class X{
public static void main(String[] args){
int x;
double y;
x=(int)pow(2,3); //possible loss of precision
y=pow(2,3);
x=(int)pow(2,3.2); //possible loss of precision
y=pow(2,3.2);
x=(int)pow(2.1,3); //possible loss of precision
y=pow(2.1,3);
x=(int)pow(2.1,3.2); //possible loss of precision
y=pow(2.1,3.2);
}
public static double pow(double x, double y){
return Math.pow(x,y);
}
public static double pow(int q, double s){
return Math.pow(q,s);
}
}