java编写三角形面积_用Java描述一个三角形,提供计算三角形面积方法.三角形的三个边长从键盘输入....

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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;

}

}

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()); }

}

1年前

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