Trying to create an if/else branch that will notify the user of an invalid entry when creating a recipe, allowing them another chance, instead of just stopping the code when entering not a string or integer. Any help appreciated! Thanks in advance!!

Right now, the program will stop and generate an error if the user enters anything other than a string input into the recipe name, or anything other than an integer input into the other recipe parameters. What I would like it to do is open another if/else branch that will verify if the correct input is entered, and say "invalid entry" if not, allowing another attempt. And possibly step through a loop that will continue this until a valid entry type is made. I just can't seem to get the inner loops to accomplish this to work and could use some help. I removed the loops I developed for this in my code below, to just provide what I have that does work. I appreciate any help!

package steppingstones;

//import classes

import java.util.ArrayList;

import java.util.Scanner;

/**

*

* @author

*/

public class SteppingStone6_RecipeBox {

//instance variables

private ArrayList listOfRecipes;

// accessors for the list Of Recipes

public ArrayList getListOfRecipes()

{

return listOfRecipes;

}

// mutators for the list Of Recipes.

public void setListOfRecipes(ArrayList listOfRecipes)

{

this.listOfRecipes = listOfRecipes;

}

// default constructors for the SteppingStone6_RecipeBox()

public SteppingStone6_RecipeBox()

{

this.listOfRecipes = new ArrayList<>();

}

// parameter constructors for the SteppingStone6_RecipeBox()

public SteppingStone6_RecipeBox(ArrayList listOfRecipes)

{

this.listOfRecipes = listOfRecipes;

}

// custom method named printAllRecipeDetails

void printAllRecipeDetails(String selectedRecipe)

{

for (SteppingStone5_Recipe recipe : listOfRecipes)

{

if (recipe.getRecipeName().equalsIgnoreCase(selectedRecipe))

{

recipe.printRecipe();

return;

}

}

System.out.println("No Recipe found with name: " + selectedRecipe);

}

// custom method named PrintAllRecipeNames()

void printAllRecipeNames()

{

for (SteppingStone5_Recipe selectedRecipe : listOfRecipes)

{

System.out.println(selectedRecipe.getRecipeName());

}

}

// method named AddRecipe().

public void addRecipe(SteppingStone5_Recipe tempRecipe)

{

listOfRecipes.add(tempRecipe);

}

// main method to execute the program

public static void main(String[] args)

{

// Create a Recipe Box

SteppingStone6_RecipeBox myRecipeBox = new SteppingStone6_RecipeBox();

Scanner menuScnr = new Scanner(System.in);

//Printing menu for a user to select the available options

System.out.println("Menu " + "1. Add Recipe " +

"2. Print All Recipe Details " + "3. Print All Recipe Names " +

" Please select a menu item:");

while (menuScnr.hasNextInt() || menuScnr.hasNextLine())

{

int input = menuScnr.nextInt();

//Using if-else to select three custom methods.

if (input == 1) {

myRecipeBox.newRecipe();

}

else if (input == 2) {

System.out.println("Which recipe? ");

String selectedRecipe = menuScnr.next();

myRecipeBox.printAllRecipeDetails(selectedRecipe);

}

else if (input == 3) {

for (int j = 0; j < myRecipeBox.listOfRecipes.size(); j++)

{

System.out.println((j + 1) + ": " +

myRecipeBox.listOfRecipes.get(j).getRecipeName());

}

}

else {

System.out.println(" Menu " + "1. Add Recipe " +

"2. Print Recipe " + "3. Adjust Recipe Servings " +

" Please select a menu item:");

}

System.out.println("Menu " + "1. Add Recipe " +

"2. Print All Recipe Details " +

"3. Print All Recipe Names " +

" Please select a menu item:");

}

}

// Create a method named 'newRecipe()'

public void newRecipe()

{

double totalRecipeCalories = 0.0;

ArrayList recipeIngredients = new ArrayList();

boolean addMoreIngredients = true;

Scanner scnr = new Scanner(System.in);

//prompt user to enter recipe name.

System.out.println("Please enter the recipe name: ");

String recipeName = scnr.next();

//prompt user to enter number of servings for recipe.

System.out.println("Please enter the number of servings: ");

int servings = scnr.nextInt();

do

{

//prompt user to enter ingredients or type end to finish loop.

System.out.println("Please enter the ingredient name or type end if you are finished entering ingredients: ");

String ingredientName = scnr.next();

ingredientName = ingredientName.toLowerCase();

//if user type end loop will end and print the recipe with ingredient, serving and calories.

if (ingredientName.toLowerCase().equals("end"))

{

addMoreIngredients = false;

}

else

{

//if user enter the ingredient loop will start to ask for ingredient details.

recipeIngredients.add(ingredientName);

System.out.println("Please enter an ingredient amount: ");

Double ingredientAmount = scnr.nextDouble();

//prompt user to enter measuring unit of ingredient

System.out.println("Please enter the measurement unit for an ingredient: ");

String unitMeasurement = scnr.next();

//prompt user to enter ingredient calories

System.out.println("Please enter ingredient calories: ");

int ingredientCalories = Integer.parseInt(scnr.next());

//Expression to calculate total calories

totalRecipeCalories = (ingredientCalories * ingredientAmount);

//prints the ingredient name with required amount, measuring

// unit and total calories.

System.out.println(ingredientName + " uses " + ingredientAmount + " " +

unitMeasurement + " and has " + totalRecipeCalories + " calories.");

} //end else loop.

} while (addMoreIngredients);

// Now create a recipe object and add it to the list

SteppingStone5_Recipe recipe = new SteppingStone5_Recipe(recipeName, servings, recipeIngredients, totalRecipeCalories);

addRecipe(recipe);

}

}