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Example: How to Find Area of a Circle with Diameter in Java using Functions
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Main.java
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// How to Find Area of a Circle with Diameter in Java using Functions import java.util.Scanner; public class Main { // To calculate the diameter public static float Diameter(float r) { return 2 * r; } // To calculate the circumference public static float Circumference(float r) { return 2 * (float)3.14 * r; } // To calculate the area public static float Area(float r) { return (float)3.14 * (r * r); } // It's the driver function public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("Enter the radius of the circle::\n"); float r = in.nextFloat(); // r = radius // It will print the final output System.out.println("\nDiameter = " + Diameter(r) + " units"); System.out.println("Circumference = " + Circumference(r) + " units"); System.out.println("Area = " + Area(r) + " sq. units"); } }
7
Output
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