Write a java application that calculate the area of class triangle & circle.(File must be save as: Triangle02.java)

class Circle

{

            double r,h;

            void area()

            {

                        System.out.print("Redius r= "+r+"\nThe area of the cirle is ");

                        System.out.println(Math.PI*r*r);

                        System.out.println();

            }

            void area1()

            {

                        System.out.print("Arms a= "+h+"   b= "+r+"\nThe a rea of the triangle is ");

                        System.out.println((h*r)/2);

                        System.out.println();

            }

}

class Triangle02

{

            public static void main(String args[])

            {

                        Circle b1=new Circle();

                        Circle b2=new Circle();

                        Circle b3=new Circle();

                        Circle b4=new Circle();

                        b1.r=10;

                        b2.r=5;

                        b3.r=5;

                        b3.h=10;

                        b4.r=20;

                        b4.h=5;

                        b1.area();

                        b3.area1();

                        b2.area();

                        b4.area1();

            }

}

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Copy & paste this code in your TC & run, then you will get output.......
If you have any problem please comment below.........