Java代码案例6——求长方形面积

// Java求长方形面积
package xiangmu;
import java.util.Scanner;
public class Ceshi {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        dayin("请输入长方形的长:");
        int ch = sc.nextInt();
        dayin("请输入长方形的宽:");
        int k = sc.nextInt();
        int mianji = qiumianji(ch, k);
        dayin("这个长方形的面积为:" + mianji);
        sc.close();
    }
    public static int qiumianji(int chang, int kuan) {
        int m = chang * kuan;
        return m;
    }
    public static void dayin(String zifuchuan) {
        System.out.print(zifuchuan);
    }
}
请输入长方形的长:5
请输入长方形的宽:3
这个长方形的面积为:15