Exercise02

Exercise02_09

 1 import javax.swing.JOptionPane;
 2 public class Acceleration {
 3     public static void main(String[] args){
 4         double v0,v1,t,a;
 5         String number;
 6         number=JOptionPane.showInputDialog(null,"输入初速度"); 
 7         v0=Double.parseDouble(number);
 8         number=JOptionPane.showInputDialog(null,"输入末速度"); 
 9         v1=Double.parseDouble(number);
10         number=JOptionPane.showInputDialog(null,"输入时间"); 
11         t=Double.parseDouble(number);
12         a=(v1-v0)/t;
13         int messageType=JOptionPane.INFORMATION_MESSAGE;
14         String message="The average acceleration is " + a;
15         JOptionPane.showMessageDialog(null,message,"result",messageType );
16     }
17 }