这是我的主类:我收到的NaN的答案,我二次方程calculator- JAVA
import java.util.Scanner;
public class calc {
public static void main(String[] args){
Scanner variablea = new Scanner(System.in);
Scanner variableb = new Scanner(System.in);
Scanner variablec = new Scanner(System.in);
int a1, b1, c1;
System.out.println("enter your 'A' variable");
a1 = variablea.nextInt();
System.out.println("enter your 'B' variable");
b1 = variableb.nextInt();
System.out.println("enter your 'C' variable");
c1 = variablec.nextInt();
algorithm algorithmObject = new algorithm();
algorithmObject.algorithm(a1, b1, c1);
}
}
,这是第二个
public class algorithm{
public void algorithm(int a, int b, int c){
double x1;
double square = Math.sqrt(b*b - 4*a*c);
double numerator = b*-1 + square;
double finalanswer = numerator/2*a;
System.out.println(finalanswer);
}
}
的Eclipse没有按给我任何错误,但在它要求我的3个变量并输入它们之后,它只是给了NaN。任何想法我做错了什么?
NaN不是数字 - 如果有帮助 – 2013-05-04 18:47:28
您可以将'b * -1'更改为'-b',看起来更清洁 – nullptr 2013-05-04 18:49:51
注意:我不是Java专家,但它确实需要使用三台扫描仪? – 2013-05-04 18:55:16