Java语言程序设计基础篇编程练习题2.16示例代码

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import java.util.Scanner;
public class Test2_16 {
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		System.out.print("Enter the side: ");
		double side = input.nextDouble();
		input.close();
		double area = 3 * Math.pow(3, 0.5) / 2 * side * side;
		System.out.println("The area of the hexagon is " + area);
	}
}