import java.util.Scanner;
public class FindRabbit {
public static void main(String[] args) {
int num_animals = 0;//動物的總數
int num_legs =0;//腿的總數
int num_rabbits = 0;//兔子的總數
Scanner scanner = null;
System.out.println("請輸入動物的總數和腿的總數中間使用空格分開:");
scanner = new Scanner(System.in);
if(scanner.hasNextInt())
num_animals = (int) scanner.nextInt();
if(scanner.hasNextInt())
num_legs = (int) scanner.nextInt();
num_rabbits = findRabbit(num_animals,num_legs);
if(num_rabbits!=0)
System.out.println("兔子的個數爲:"+num_rabbits);
}
public static int findRabbit(int num_animals, int num_legs){
if (num_animals>=num_legs) {
System.out.println("請檢查給定參數···");
}else{
return (num_legs-(2*num_animals))/2;
}
return 0;
}
}