- 757 名前：デフォルトの名無しさん mailto:sage [2008/04/28(月) 17:40:14 ]
- >>755
public class Power {
public static void main(String[] args) {
boolean isCorrectInteger = true;
boolean isCorrectDouble = true;
for(int i = 1; i <= 40; i++){
int resultOfInt = 1;
double resultOfDouble = 1;
for(int j = 0; j < i; j++){
resultOfDouble *= 3;
resultOfInt *= 3;
}
System.out.println(String.format("k=%1$2d, int=%2$11d, double=%3$20.0f",i, resultOfInt, resultOfDouble));
if(checkError(String.format("%1$1d", Math.abs(resultOfInt))) && isCorrectInteger){
System.out.println("Overflow");
isCorrectInteger = false;
}
if(checkError(String.format("%1$1.0f", resultOfDouble)) && isCorrectDouble){
System.out.println("Error");
isCorrectDouble = false;
}
}
}
private static boolean checkError(String string) {
int val = 0;
for(int k = 0; k < string.length(); k++){
val += Integer.parseInt(string.substring(k, k+1));
}
return (val % 3) != 0;
}
}
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