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POCreating a sub menu using String/char?
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copied!<pre><code>public static String getSubMenu(String submenu){ Scanner keyboard = new Scanner(System.in); String chosen="", A="A",B="B", a="a", b="b"; do{ chosen = keyboard.next(); keyboard.nextLine(); System.out.print("\n\n"); }while(chosen.compareTo(A)); return chosen; } //This function below is fine. public static void Menu(){ String unem=""; do{ System.out.println("Sub Menu"); System.out.println("Select an Option\n\n"); System.out.println("a.Sort by name\n" + "b.Sort by time\n" + "c.Exit sub-menu\n\n"); System.out.print("Input the number for the selected option: "); unem= getSubMenu(unem); if("a".equals(unem)|| "A".equals(unem)){ } if("b".equals(unem)|| "B".equals(unem)){ } }while ("a".equals(unem) ||"b".equals(unem) || "A".equals(unem) || "B".equals(unem)); } } </code></pre> <p>Hi, I'm trying to make a sub menu. As you can see in the function <code>Menu</code>, when <code>getSubMenu</code> is called the user has to input a selected option in the function <code>getSubMenu</code>. I looked through my textbook and online and it doesn't seem you can use <code>char</code> within arguments such as </p> <pre><code>char a="a"; if(a != b); </code></pre> <p>If you can use characters instead of strings in the functions above please tell.</p> <p>But moving on. What I am trying to do now is to get <code>getSubMenu</code> to return a String containing either <code>'A' || 'a' || 'b' || 'B' || 'c' || 'C'</code> and then loop when the user does not put any of these as an input. I've tried attempting to use <code>compareTo</code> but I receive a <code>Type mismatch: cannot convert from int to boolean error</code> how can I improve on this. What syntax can I use so that this can work.</p> <p>Thanks for everyone who will help and contribute to this.</p> <p>EDITED: NEW WORKING FUNCTION</p> <pre><code> public static String getSubMenu(String submenu){ Scanner keyboard = new Scanner(System.in); boolean looped = true; String chosen=""; do{ chosen = keyboard.next(); keyboard.nextLine(); System.out.print("\n\n"); if("a".equals(option)|| "A".equals(option) || "b".equals(option)|| "B".equals(option) || "c".equals(option)|| "C".equals(option)){ looped = false; } else System.out.println("Wrong input"); }while(looped); return option; </code></pre> <p>It may of not been what I was aiming for but it still did it job.</p>

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