If Statement question

[CDog1324]

So first of all, here is my code:

import java.util.Scanner;

public class Main {
	public static void main(String args[]){
		Scanner s = new Scanner(System.in);
		
		System.out.println("Welcome New Player!");
		System.out.println("I will by the guide on your Adventure through the land of Marner.");
		System.out.println("As your first choose, do you want to be a Mage, a Warrior, or a Archer?\n");
		System.out.println("Options:\n1: Mage\n2: Warrior\n2: Archer\n Now type either 1, 2, or 3.\n");
		
		System.out.print("Choice: ");
		int a = s.nextInt();
		
		if(a == 1)
			System.out.println("You have chosen to be a Mage!\nYou will be mentored by the Arcane God Ryze!\nGood Luck on your Travels!");
		else if(a == 2)
			System.out.println("You have chosen to be a Warrior!\nYou will be mentored by the Rage God Tryndamere!\n Good luck on your Travels!");
		else if(a == 3)
			System.out.println("You have chosen to be a Archer!\nYou will be mentored by the Shadow God Shaco!\n Good luck on your Travels!");
		else
			System.out.println("You have chosen an invalid choice, and will now be prompted to chose again.\n Remember, choose either 1, 2, or 3.");
		}
		}

So basically, i want to have them choose their class, and when chosen, it displays what they've chosen, etc. But what I want to know, is if they choose press something other than 1, 2, or 3, how to make it loop back to the beginning, and have them choose again. I know it's a little bit of a noob question, but i can't seem to figure it out :P

Thanks!!

[JosAH]

The answer is a loop: keep on looping while no correct choice has been made; the following is a bit of a spoiler: it takes advantage that a boolean assignment is a boolean expression and it can be used in your if statements:

for (boolean correct= false; !correct; ) {
   System.out.print("Choice: ");         
   int a = s.nextInt();
   if(correct= (a == 1))
      System.out.println("You have chosen to be a Mage!\nYou will be mentored by the Arcane God Ryze!\nGood Luck on your Travels!");
   else if(correct= (a == 2))   
      System.out.println("You have chosen to be a Warrior!\nYou will be mentored by the Rage God Tryndamere!\n Good luck on your Travels!");
   else if(correct= (a == 3))      
      System.out.println("You have chosen to be a Archer!\nYou will be mentored by the Shadow God Shaco!\n Good luck on your Travels!");    
   else       
      System.out.println("You have chosen an invalid choice, and will now be prompted to chose again.\n Remember, choose either 1, 2, or 3.");         
}

kind regards,

Jos