java题啊高手速来啊求救

这个符合你的要求：import java.io.*;class MyException extends Exception{ String s="不能以负数作为边长";public String toString(){ return s;} }public class isTriangle { boolean triangle (int a,int b,int c){ boolean flag;if(a*a==b*b+c*c||b*b==c*c+a*a||c*c==a*a+b*b) flag=true;else flag=false;return flag;} public static void main(String[] args)throws IOException,MyException { isTriangle it=new isTriangle();int [] num=new int[3];String [] string=new String[3];boolean b;for(int i=0;i<3;i++) { System.out.println("请输入第"+(i+1)+"个数：");BufferedReader br=new BufferedReader(new InputStreamReader(System.in));string[i]=br.readLine();num[i]=Integer.parseInt(string[i]);} if(num[0]<=0||num[1]<=0||num[2]<=0) try{ throw new MyException();} catch(MyException e) { System.out.println(e.toString());} else if((num[0]+num[1])<=num[2]||(num[2]+num[1])<=num[0]||(num[0]+num[2])<=num[1]) System.out.print("不能构成三角形！");else { b=it.triangle(num[0],num[1],num[2]);System.out.println(b);} }} 收起