I am writing a program to monitor animals and habitats in a zoo, reading from 2
ID: 3712699 • Letter: I
Question
I am writing a program to monitor animals and habitats in a zoo, reading from 2 different .txt files. The animals portion of my code is working perfectly, but when I try to execute the habitats portion, I get errors. Below is both my code and recieved errors:
import java.util.Scanner;
import java.io.FileNotFoundException;
public class ZooMonitor {
static fileread fr = new fileread();
private static Scanner scnr = new Scanner(System.in);
public static void main(String[] args)throws FileNotFoundException {
while(true){
int choice = menu();
if(choice == 1){
// Select animal
int animal = animal_select();
String Type = "";
String Name = "";
switch (animal){
case 1:
Name = "Animal - Lion";
break;
case 2:
Name = "Animal - Tiger";
break;
case 3:
Name = "Animal - Bear";
break;
case 4:
Name = "Animal - Giraffe";
break;
case 5:
}
//read requested information from file
fileread.read_animal(Name);
}
else if(choice == 2){
//select the habitat
int animal = habitat_select();
String Type = "";
String Name = "";
switch (animal){
case 1:
Name = "Habitat - Penguin";
break;
case 2:
Name = "Habitat - Bird";
break;
case 3:
Name = "Habitat - Aquarium";
break;
case 4:
}
//read requested information from file
fileread.read_habitat(Name);
}
else{
System.out.println("Thank You!");
System.exit(0);
}
}
}
private static int habitat_select(){
//Display habitat options
System.out.println("1.Habitat - Penguin ");
System.out.println("2.Habitat - Bird");
System.out.println("3.Habitat - Aquarium");
System.out.println("Enter your choice, 1-3");
int choice = scnr.nextInt();
return choice;
}
private static int animal_select(){
//Display animal options
System.out.println("1.Animal - Lion");
System.out.println("2.Animal - Tiger");
System.out.println("3.Animal - Bear");
System.out.println("4.Animal - Giraffe");
System.out.println("Enter your choice, 1-4");
int choice = scnr.nextInt();
return choice;
}
private static int menu(){
//Main menu
System.out.println("1.Monitor animals");
System.out.println("2.Monitor habitats");
System.out.println("3.Exit");
int choice = scnr.nextInt();
return choice;
}
}
//Second .java file
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
import javax.swing.JOptionPane;
public class fileread {
private static Scanner fileread;
// constructor
public fileread(){
fileread = null;
}
public static void read_animal(String Name) throws FileNotFoundException{
//read from the animals.txt file
fileread = new Scanner (new File("C:\Users\Debbie and Drew\Desktop\animals.txt"));
boolean cont = true;
String Type = "";
//read the file until match found
while(fileread.hasNextLine() &&cont){
Type=fileread.nextLine();
if(Type.equals(Name))
cont = false;
}
//read file data
String animal_name = fileread.nextLine();
String animal_age = fileread.nextLine();
String animal_health = fileread.nextLine();
String animal_feed = fileread.nextLine();
//prints information
System.out.println(animal_name);
System.out.println(animal_age);
//if warning present, display
if(animal_health.contains("*****")) {
JOptionPane.showMessageDialog(null, animal_health.substring(5,animal_health.length()), "Warning : " + Type, JOptionPane.INFORMATION_MESSAGE);
}
else {
System.out.println(animal_health);
}
if(animal_feed.contains("*****")) {
JOptionPane.showMessageDialog(null, animal_feed.substring(5,animal_feed.length()), "Warning : " + Type, JOptionPane.INFORMATION_MESSAGE);
}
else {
System.out.println(animal_feed);
}
}
public static void read_habitat(String Name) throws FileNotFoundException{
//read from the habitats.txt file
fileread = new Scanner (new File("C:\Users\Debbie and Drew\Desktop\habitats.txt"));
boolean cont = true;
String Type = "";
//read file until match found
while(fileread.hasNextLine() &&cont){
Type = fileread.nextLine();
if(Type.equals(Name))
cont=false;
}
//read information
String temperature = fileread.nextLine();
String food = fileread.nextLine();
String cleanliness = fileread.nextLine();
//if warning present, display
if(temperature.contains("*****")) {
JOptionPane.showMessageDialog(null, temperature.substring(5,temperature.length()), "Warning : " + Type, JOptionPane.INFORMATION_MESSAGE);
}
else {
System.out.println(temperature);
}
if(food.contains("*****")) {
JOptionPane.showMessageDialog(null, food.substring(5,food.length()), "Warning : " + Type, JOptionPane.INFORMATION_MESSAGE);
}
else {
System.out.println(food);
}
if(cleanliness.contains("*****")) {
JOptionPane.showMessageDialog(null, cleanliness.substring(5,cleanliness.length()), "Warning : " + Type, JOptionPane.INFORMATION_MESSAGE);
}
else {
System.out.println(cleanliness);
}
}
} This results in the following:
Exception in thread "main" java.util.NoSuchElementException: No line found
at java.util.Scanner.nextLine(Scanner.java:1540)
at fileread.read_habitat(fileread.java:65)
at ZooMonitor.main(ZooMonitor.java:61)
Explanation / Answer
What type of error show??
You not use Type veriable or exit may show exception.If prob not solve then please run and send screenshot.