Question

Java...

Write a class that has three overloaded static methods for calculating the areas of the
following geometric shapes:

• circles -- area = π*radius^2 (format the answer to have two decimal places)
• rectangles -- area = width * length
• trapezoid -- area = (base1 + base2) * height/2

Because the three methods are to be overloaded, they should each have the same name, but
different parameters (for example, the method to be used with circles should only take
one parameter, the radius of the circle).

Demonstrate the methods in a program that prints out the following areas, each on a
separate line:

• the area of a circle with radius 3
• the area of a rectangle with length 2 and width 4
• the area of a trapezoid with base lengths 3 and 5 and height 5

Answer 1

Java Program:

class Main {

public static double Area(double radius){

return 3.14*radius*radius;

}

public static double Area(double width, double length){

return width*length;

}

public static double Area(double base1,double base2,double height){

return (base1+base2)*height/2;

}

public static void main(String[] args) {

System.out.println("the area of a circle with radius 3 is "+Area(3));

System.out.println("the area of a rectangle with length 2 and width 4 is "+Area(2,4));

System.out.println("the area of a trapezoid with base lengths 3 and 5 and height 5 is "+Area(3,5,5));

}

}

https://DependentCoarse Services.kunlstudy.repl.run Open JDK Runtime Environment (build 10.0.2+13-Ubuntu-lubuntu.18 .04.4) > javac -classpath ./run dir/junit-4.12.jar -d. Main.java > java -classpath .:/run dir/junit-4.12.jar Main the area of a circle with radius 3 is 28.259999999999998 the area of a rectangle with length 2 and width 4 is 8.0 the area of a trapezoid with base lengths 3 and 5 and height 5 is 20.0

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