在本教程中,我们将看到如何计算矩形面积。
程序 1:
用户将在程序执行期间提供长度和宽度值,并根据提供的值计算面积。
/** * @author: BeginnersBook.com * @description: Program to Calculate Area of rectangle */import java.util.Scanner;class AreaOfRectangle { public static void main (String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("Enter the length of Rectangle:"); double length = scanner.nextDouble(); System.out.println("Enter the width of Rectangle:"); double width = scanner.nextDouble(); //Area = length*width; double area = length*width; System.out.println("Area of Rectangle is:"+area); }}
输出:
Enter the length of Rectangle:2Enter the width of Rectangle:8Area of Rectangle is:16.0
程序 2:
在上述程序中,将要求用户提供长度和宽度值。如果您不需要用户交互并且只想在程序中指定值,请参阅以下程序。
/** * @author: BeginnersBook.com * @description: Calculation with no user interaction */class AreaOfRectangle2 { public static void main (String[] args) { double length = 4.5; double width = 8.0; double area = length*width; System.out.println("Area of Rectangle is:"+area); }}输出:
Area of Rectangle is:36.0
