摘要： import java.util.*;public class Example3_3{public static void main(String[] args){Scanner reader=new Scanner(System.in);double a=0,b=0,c=0;System.out.print("输入边a:");a=reader.nextDouble();System.out.print("输入边b:");b=reader.nextDouble();System.out.print("输入边c:");c=reader. 阅读全文