java：如果告诉你a,b,c三条边,判断是否可以构成三角形,如果能计算出这个三角形的面积和周长?

【程序代码】
public class Js
{
private double a;
private double b;
private double c;
Js(double a,double b,double c)
{
this.a = a;
this.b = b;
this.c = c;
}
public double getA()
{
return a;
}
public double getB()
{
return b;
}
public double getC()
{
return c;
}
public double area()
{
double s1=(a+b+c)/2;
double s2 = s1*(s1-a)*(s1-b)*(s1-c);
double result = Math.sqrt(s2);
return result;
}
public double jsLength()
{
return a+b+c;
}
}
class Jxcomputer
{
public static void main(String[] args)
{
Js js = new Js(3,6,8);
System.out.println("三角形三边长度分别为："+"a:"+js.getA()+"tb:"+js.getB()+"tc:"+js.getC());
System.out.println("三角形面积为："+js.area());
System.out.println("三角形周长为："+js.jsLength());
}
}
【编译与运行】
编译：javac Js.java
运行：java Jxcomputer
查找的代码,