area2.java

area2.java

public class area2 {
public static void main (String[]arg){
java.util.Scanner scanner = new java.util.Scanner(System.in);

System.out.println("請輸入底");
double down = scanner.nextDouble();
  
        System.out.println("請輸入高");
        double height = scanner.nextDouble();        
          
        double area=down*height/2;
        System.out.println("底為"+down+",高為"+height+",面積為"+area);      
}
}