Standard Library: Using Math Class

In this problem, you will create a program that reads a radius, base, and exponent from standard input, calculates the area of a circle using Math.PI and a power using Math.pow(), then displays each result formatted to 2 decimal places to standard output.

Learning Objective: Learn to combine Java's Math class with Scanner to perform mathematical calculations efficiently

Overview

Read values from standard input and use static methods of the Math class to calculate circle area and powers. Use Math.PI, Math.pow(), and Scanner.

Input Format

radius
base exponent

• Line 1: radius (integer)
• Line 2: base and exponent (space-separated integers)

Specifications

• Calculate area of circle from radius (use Math.PI for pi)
• Calculate power from base and exponent (use Math.pow())
• Output results with 2 decimal places

Input/Output Example

Input:

5
2 3

Output:

Circle area: 78.54
2 to the power of 3: 8.00