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  int subchicken, subbeef, subveg, subchild, subnone, subnobeef;        subchicken = request.indexOf("chicken");    subbeef = request.indexOf("beef");    subnobeef = request.indexOf("no beef");    subveg = request.indexOf("vegetarian");    subchild = request.indexOf("child");        if (((subnobeef >= 0) || (subchicken >= 0)) && (subchild < 0)) {     mealcode = 1;    }     else if ((subbeef >= 0) && (subchild < 0)) {     mealcode = 2;    }     else if (subveg >= 0) {     mealcode = 3;    }     else if ((subchild >= 0) && (subveg < 0)) {     mealcode = 4;    }     else {     mealcode = 0;    }public class TC1 {  public static void main( String[] args )   {    // Enter a value to test here    String request = "30";      System.out.println("mealcode is " + work(request));  }  public static int work( String request )  {    int mealcode;    // Enter your code here     return mealcode;  }}Submitted