Following simple code shows how to pass command line arguments to to Java program:

  1 public class CommandLineInput {
  2   public static void main (String[] args) {
  3     for (String argument: args) {
  4       System.out.println(argument);
  5     }
  6   }
  7 }

Running the program

javac CommandLineInput.java
java CommandLine 30000 students

Output of this program

30000
students

Explanation
All command line arguments are passed to a String array named args defined on line 2 of the code. Since all arguments are stored in an array in the order they were passed, you simply need to access the array to get the command line parameters and cast them to another type in necessary.