PLEASE SHOW ME WHERE TO INSERT MAIN METHOD (PUBLIC STATIC VOID MAIN STRING ARGS []) SO PROGRAM CAN RUN BELOW, CODE IS SAYING IT DOES NOT HAVE A MAIN METHOD:

import java.util.ArrayList;

/**

* Ingredient class :

* items that will be stored in each recipe

*

*/

public class Ingredient {

//variables

private String ingredientName;

private double ingredientAmount;

private String unitMeasurement;

private double totalCalories;

public Ingredient() {

}

//constructor

public Ingredient(String ingredientName, double ingredientAmount, String unitMeasurement, double totalCalories) {

super();

this.ingredientName = ingredientName;

this.ingredientAmount = ingredientAmount;

this.unitMeasurement = unitMeasurement;

this.totalCalories = totalCalories;

}

//Seter and getter

public String getIngredientName() {

return ingredientName;

}

public void setIngredientName(String ingredientName) {

this.ingredientName = ingredientName;

}

public double getIngredientAmount() {

return ingredientAmount;

}

public void setIngredientAmount(double ingredientAmount) {

this.ingredientAmount = ingredientAmount;

}

public String getUnitMeasurement() {

return unitMeasurement;

}

public void setUnitMeasurement(String unitMeasurement) {

this.unitMeasurement = unitMeasurement;

}

public double getTotalCalories() {

return totalCalories;

}

public void setTotalCalories(double totalCalories) {

this.totalCalories = totalCalories;

}

//print item detail

public void printItemDetails() {

System.out.println("ingredientName " + this.ingredientName);

System.out.println("ingredientAmount " + this.ingredientAmount);

System.out.println("totalCalories " + this.totalCalories);

System.out.println("unitMeasurement " + this.unitMeasurement);

}

}