Command line argument in Java

The command line argument is the argument passed to a program at the time when you run it. To access the command-line argument inside a java program is quite easy, they are stored as string in String array passed to the args parameter of main() method.

Example

class cmd
{
  public static void main(String[] args)
  {
    for(int i=0;i< args.length;i++)
    {
    System.out.println(args[i]);
    }
  }
}

10 20 30

System.exit()

In Java, exit() method is in the class java.lang.System.exit(). This method is used to take an exit or terminating from a running program. A non zero value is set in a status code which is used for indicating a non-zero value. exit(0) is used for successful termination and exit(1) or exit(-1) is used for unsuccessful termination. The exit() method does not return any value.

Example:

	
import java.util.*; 
import java.lang.*; 

class ExitDemo1
{ 
    public static void main(String[] args) 
    { 
intx[] = {5, 10, 15, 20, 25, 30, 35, 40, 45, 50}; 

        for (inti = 0; i<x.length; i++) 
        { 
            if (x[i] >= 40) 
            { 
System.out.println("Program is Terminated..."); 
System.exit(0); 
            } 
            else
System.out.println("x["+i+"] = " + x[i]); 
        } 
    } 
}