Parsing java main args[] array errors

Exception in thread "main" java.lang.NumberFormatException: For input string: "foo"

at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)

at java.lang.Integer.parseInt(Integer.java:447)

at java.lang.Integer.parseInt(Integer.java:497)

at NumberGuess.main(NumberGuess.java:10)

public class NumberGuess {

public static void main(String args[]){

        int r;
        int g;

        if ((args[0].compareTo("help")) == 0){
                System.out.println("Enter a number between 1-5 to play.");
        } else if (Integer.parseInt(args[0]) > 0 && Integer.parseInt(args[0]) <= 5){

                r = ((int)(Math.random()));
                g = Integer.parseInt(args[0]);

                if (r == g){
                        System.out.println("YOU WON!");
                } else {
                        System.out.println("Wrong: number was " + r);
                }

        } else {
                System.out.println("Something went horribly wrong.");

        }}}

if ("help".equals(args[0])) {
  System.out.println("Enter a number between 1 and 5 to play.");
}
else {
  int number;
  try {
    number = Integer.parseInt(args[0]);
  }
  catch (NumberFormatException ex) {
    System.out.println("Input is not an integer: " + args[0]);
    return;
  }
  if ((number < 1) || (number > 5)) {
    System.out.println("Number out of bounds: " + number);
    return;
  }
  int r = new java.util.Random().nextInt(5) + 1;
  if (number == r)
    System.out.println("You won!");
  else
    System.out.println("You lost!");
}

int r;
    int g;
        int temp;

    if ((args[0].compareTo("help")) == 0){
            System.out.println("Enter a number between 1-5 to play.");
    } else {
                        try{
                                temp = Integer.parseInt(args[0]);
                        }catch(NumberFormatException e){
                                System.out.println("Please enter a number");
                                System.exit(-1);
                        }
            if (Integer.parseInt(args[0]) > 0 && Integer.parseInt(args[0]) <= 5){
                        r = ((int)(Math.random()));
            g = Integer.parseInt(temp);

            if (r == g){
                    System.out.println("YOU WON!");
            } else {
                    System.out.println("Wrong: number was " + r);
            }
                        }

    } else {
            System.out.println("Something went horribly wrong.");

    }}}

g = Integer.parseInt(args[0]);

try {
    g = Integer.parseInt(args[0]);
} catch(NumberFormatException e) {
    System.out.println("The first parameter was supposed to be a number!");
    System.exit(1);
}

if(args[0].equalsIgnoreCase("foo")) {
    // now we know foo is the first arg.  Parse args[1]!
    ...
}

Random().nextInt(10) + 1;  // (Thanks @mmyers)