java - 如何更改它以接受用户的输入

Question

public class OblongTester
{
   public static void main(String [] args)
   {  
   // declare variables
   Oblong myOblong = new Oblong();

   // use methods to set instance variables
   myOblong.setHeight(10);
   myOblong.setWidth(25);

   // use methods to retrieve values of instance variables
   System.out.println("Width: " + myOblong.getWidth());
   System.out.println("Height: " + myOblong.getHeight());   
   System.out.println("Area: " + myOblong.calculateArea());

   }
}

我需要的是 setHeight 和 setWidth 的固定值，我希望用户能够输入高度和宽度，然后让该区域将高度和宽度的值相乘并生成输出以区域为例

输入高度:10输入宽度:5面积:50.0

希望这很清楚我要问的是什么。上次我因为不具体而在指关节上包扎了。

问候，

标记

Answer 1

使用 Scanner :

public class OblongTester
{
   public static void main(String [] args)
   {  
   // declare variables
   Oblong myOblong = new Oblong();

   // use methods to set instance variables
   Scanner sc = new Scanner(System.in); //create a scanner

   System.out.println("Enter the height: ");
   int height = sc.nextInt(); //get height

   System.out.println("Enter the width: ");
   int width = sc.nextInt(); //get width

   myOblong.setHeight(height);
   myOblong.setWidth(width);

   System.out.println();

   // use methods to retrieve values of instance variables
   System.out.println("Width: " + myOblong.getWidth());
   System.out.println("Height: " + myOblong.getHeight());   
   System.out.println("Area: " + myOblong.calculateArea());

   }
}