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());

   }
}

我需要的不是为setHeight和setWidth设置固定值而是希望用户能够输入高度和宽度，然后让区域获取高度和宽度的值将它们相乘并生成输出区域例如

输入高度：10 输入宽度：5 面积：50.0

希望这清楚我要问的是什么。上次我因为没有具体而对指关节进行了包装。

此致

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());

   }
}

你如何改变它，以便接受用户的输入

1 个答案: