source file name:  Expenses.java

class Expenses 

{

public static void main(String args[])

{

int p=Integer.parseInt(args[0]);

//conversion of Command line values into integer value

if(Integer.parseInt(args[0])>100)

System.out.println("The Price is="+(p-(p*10/100)));

else

System.out.println("The Price="+p);

}

}

output:

D:\JavaPrograms\CmdPrograms>javac Expenses.java

D:\JavaPrograms\CmdPrograms>java Expenses 150
The Price is=135

D:\JavaPrograms\CmdPrograms>java Expenses 90
The Price=90