Write a java program for command line arguments

 import java.io.*; 

import java.util.*; 

public class commline 

{ 

public static void main(String key[]) 

 {

 int x=Integer.parseInt(key[0]); 

 switch(x){ 

 case 1: System.out.println("Monday"); 

 break; 

 case 2: System.out.println("Tuesday"); 

 break; 

 case 3: System.out.println("Wednesday"); 

 break; 

 case 4: System.out.println("Thursday"); 

 break; 

 case 5: System.out.println("Friday"); 

 break; 

 case 6: System.out.println("Saturday"); 

 break; 

 case 7: System.out.println("Sunday"); 

 break; 

 default :System.out.println("Invalid Number of Day");  } 

 } 

}