根据公式计算一定条件下的值

/* -1 x<0

* y=0 x=0

* 1 x>0

*/

//PassOrNot2.java

import java.util.Scanner;
public class PassOrNot2{
public static void main(String[] args){
System.out.println("请输入x的值：");
Scanner jingle=new Scanner(System.in);
float x=jingle.nextFloat();
float y;
if(x<0)
y=-1;
else if(x==0)
y=0;
else
y=1;
System.out.println("y的值是："+y);
}
}