Java输入一个小数，输出它的绝对值

Question

如题所述

Answer 1

import java.util.Scanner;
public class Main{
public static void main(String[]args){
Scanner in=new Scanner(System.in);
float i=in.nextDouble();
if(i<0)
System.out.println(-i);
else
System.outprintln(i);
}
}

Answer 2

public class Test {

public static void main(String[] args) {
System.out.println(Math.abs(1.3-5.6));
}
}本回答被网友采纳