import java.util.ArrayList;
import java.util.Scanner;
public class Driver {
private static ArrayList<Dog> dogList = new ArrayList<Dog>();
//creates monkey ArrayList
private static ArrayList<Monkey> monkeyList = new ArrayList<Monkey>();
public static void main(String[] args) {
initializeDogList();
initializeMonkeyList();
// Add a loop that displays the menu, accepts the users input
// and takes the appropriate action.
// For the project submission you must also include input validation
// and appropriate feedback to the user.
// Hint: create a Scanner and pass it to the necessary
// methods
// Hint: Menu options 4, 5, and 6 should all connect to the printAnimals() method.
Scanner scnr = new Scanner(System.in);
String input = "";
do {
displayMenu();
input = scnr.nextLine();
if input.equals("1")) {
intakeNewDog(scnr);
}
else if input.equals("2")) {
intakeNewMonkey;
}
else if input.equals("3")) {
reserveAnimal(scnr);
}
else if input.equals("4")) {
printAnimals("dog");
}
else if input.equals("5")) {
printAnimals("monkey";)
}
else if input.equals("6")) {
printAnimals("available");
}
else {
while(!input.equals("q")) {
}
}
}
// This method prints the menu options
public static void displayMenu() {
System.out.println("\n\n");
System.out.println("\t\t\t\tRescue Animal System Menu");
System.out.println("[1] Intake a new dog");
System.out.println("[2] Intake a new monkey");
System.out.println("[3] Reserve an animal");
System.out.println("[4] Print a list of all dogs");
System.out.println("[5] Print a list of all monkeys");
System.out.println("[6] Print a list of all animals that are not reserved");
System.out.println("[q] Quit application");
System.out.println();
System.out.println("Enter a menu selection");
}
// Adds dogs to a list for testing
public static void initializeDogList() {
Dog dog1 = new Dog("Spot", "German Shepherd", "male", "1", "25.6", "05-12-2019", "United States", "intake", false, "United States");
Dog dog2 = new Dog("Rex", "Great Dane", "male", "3", "35.2", "02-03-2020", "United States", "Phase I", false, "United States");
Dog dog3 = new Dog("Bella", "Chihuahua", "female", "4", "25.6", "12-12-2019", "Canada", "in service", true, "Canada");
dogList.add(dog1);
dogList.add(dog2);
dogList.add(dog3);
}
// Adds monkeys to a list for testing
//Optional for testing
public static void initializeMonkeyList() {
}
// Complete the intakeNewDog method
// The input validation to check that the dog is not already in the list
// is done for you
public static void intakeNewDog(Scanner scanner) {
System.out.println("What is the dog's name?");
String name = scanner.nextLine();
for(Dog dog: dogList) {
if(dog.getName().equalsIgnoreCase(name)) {
System.out.println("\n\nThis dog is already in our system\n\n");
return; //returns to menu
}
}
// Add the code to instantiate a new dog and add it to the appropriate list
System.out.print("Please enter the dog's breed: ");
String breed = scanner.nextLine();
System.out.print("Please enter the dog's gender: ");
String gender = scanner.nextLine();
System.out.print("Please enter the dog's age: ");
String age = scanner.nextLine();
System.out.print("Please enter the dog's weight: ");
String weight = scanner.nextLine();
System.out.print("Please enter the dog's acquisitionDate: ");
String acquisitionDate = scanner.nextLine();
System.out.print("Please enter the dog's acquisitionCountry: ");
String acquisitionCountry = scanner.nextLine();
System.out.print("Please enter the dog's trainingStatus: ");
String trainingStatus = scanner.nextLine();
System.out.print("Please enter is the dog reserved: ");
String reserved = scanner.nextLine();
System.out.print("Please enter the dog's inServiceCountry: ");
String inServiceCountry = scanner.nextLine();
}
// Complete intakeNewMonkey
//Instantiate and add the new monkey to the appropriate list
// For the project submission you must also validate the input
// to make sure the monkey doesn't already exist and the species type is allowed
public static void intakeNewMonkey(Scanner scanner) {
System.out.println("What is the monkey's name?");
String name = scanner.nextLine();
for(Monkey monkey: monkeyList) {
if(monkey.getName().equalsIgnoreCase(name)) {
System.out.println("This monkey is already in our system");
return; //returns to menu
}
}
// Add the code to instantiate a new monkey and add it to the appropriate list
System.out.print("Please enter the monkey species: ");
String species = scanner.nextLine();
System.out.print("Please enter monkey's height: ");
String height = scanner.nextLine();
System.out.print("Please enter monkey's tailLength: ");
String tailLength = scanner.nextLine();
System.out.print("Please enter monkey's bodyLength: ");
String bodyLength = scanner.nextLine();
System.out.print("Please enter monkey's gender: ");
String gender = scanner.nextLine();
System.out.print("Please enter monkey's age: ");
String age = scanner.nextLine();
System.out.print("Please enter monkey's weight: ");
String weight = scanner.nextLine();
System.out.print("Please enter monkey's acquisitionDate: ");
String acquisitionDate = scanner.nextLine();
System.out.print("Please enter monkey's acquisitionCountry: ");
String acquisitionCountry = scanner.nextLine();
System.out.print("Please enter monkey's trainingStatus: ");
String trainingStatus = scanner.nextLine();
System.out.print("Please enter is monkey reserved: ");
String reserved = scanner.nextLine();
System.out.print("Please enter monkey's inServiceCountry: ");
String inServiceCountry = scanner.nextLine();
}
// Complete reserveAnimal
// You will need to find the animal by animal type and in service country
public static void reserveAnimal(Scanner scanner) {
System.out.println("Which type of animal do you want to reserve? Dog or monkey?");
String typeOfAnimal = scanner.nextLine();
System.out.println("Where is the animal in service?");
String inServiceCountry = scanner.nextLine();
for(Monkey monkey: monkeyList) {
if(monkey.getName().equalsIgnoreCase(name)) {
System.out.println("This monkey is already in our system");
return; //returns to menu
}
System.out.println("The method reserveAnimal needs to be implemented");
}
// Complete printAnimals
// Include the animal name, status, acquisition country and if the animal is reserved.
// Remember that this method connects to three different menu items.
// The printAnimals() method has three different outputs
// based on the listType parameter
// dog - prints the list of dogs
// monkey - prints the list of monkeys
// available - prints a combined list of all animals that are
// fully trained ("in service") but not reserved
// Remember that you only have to fully implement ONE of these lists.
// The other lists can have a print statement saying "This option needs to be implemented".
// To score "exemplary" you must correctly implement the "available" list.
public static void printAnimals(String Animal) {
if (Animal.equals("Monkey")) {
System.out.print("Monkey list");
}
}
if (Animal.equals("Available")) {
System.out.print("All animal list");
}
System.out.println("The method printAnimals needs to be implemented");
}
} Write, Run & Share Java code online using OneCompiler's Java online compiler for free. It's one of the robust, feature-rich online compilers for Java language, running the Java LTS version 17. Getting started with the OneCompiler's Java editor is easy and fast. The editor shows sample boilerplate code when you choose language as Java and start coding.
OneCompiler's Java online editor supports stdin and users can give inputs to the programs using the STDIN textbox under the I/O tab. Using Scanner class in Java program, you can read the inputs. Following is a sample program that shows reading STDIN ( A string in this case ).
import java.util.Scanner;
class Input {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Enter your name: ");
String inp = input.next();
System.out.println("Hello, " + inp);
}
}
OneCompiler supports Gradle for dependency management. Users can add dependencies in the build.gradle file and use them in their programs. When you add the dependencies for the first time, the first run might be a little slow as we download the dependencies, but the subsequent runs will be faster. Following sample Gradle configuration shows how to add dependencies
apply plugin:'application'
mainClassName = 'HelloWorld'
run { standardInput = System.in }
sourceSets { main { java { srcDir './' } } }
repositories {
jcenter()
}
dependencies {
// add dependencies here as below
implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.9'
}
Java is a very popular general-purpose programming language, it is class-based and object-oriented. Java was developed by James Gosling at Sun Microsystems ( later acquired by Oracle) the initial release of Java was in 1995. Java 17 is the latest long-term supported version (LTS). As of today, Java is the world's number one server programming language with a 12 million developer community, 5 million students studying worldwide and it's #1 choice for the cloud development.
short x = 999; // -32768 to 32767
int x = 99999; // -2147483648 to 2147483647
long x = 99999999999L; // -9223372036854775808 to 9223372036854775807
float x = 1.2;
double x = 99.99d;
byte x = 99; // -128 to 127
char x = 'A';
boolean x = true;
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
// code
} else {
// code
}
Example:
int i = 10;
if(i % 2 == 0) {
System.out.println("i is even number");
} else {
System.out.println("i is odd number");
}
Switch is an alternative to If-Else-If ladder and to select one among many blocks of code.
switch(<conditional-expression>) {
case value1:
// code
break; // optional
case value2:
// code
break; // optional
...
default:
//code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition. Usually for loop is preferred when number of iterations is known in advance.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while(<condition>){
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (<condition>);
Class is the blueprint of an object, which is also referred as user-defined data type with variables and functions. Object is a basic unit in OOP, and is an instance of the class.
class keyword is required to create a class.
class Mobile {
public: // access specifier which specifies that accessibility of class members
string name; // string variable (attribute)
int price; // int variable (attribute)
};
Mobile m1 = new Mobile();
public class Greeting {
static void hello() {
System.out.println("Hello.. Happy learning!");
}
public static void main(String[] args) {
hello();
}
}
Collection is a group of objects which can be represented as a single unit. Collections are introduced to bring a unified common interface to all the objects.
Collection Framework was introduced since JDK 1.2 which is used to represent and manage Collections and it contains:
This framework also defines map interfaces and several classes in addition to Collections.
| Collection | Description |
|---|---|
| Set | Set is a collection of elements which can not contain duplicate values. Set is implemented in HashSets, LinkedHashSets, TreeSet etc |
| List | List is a ordered collection of elements which can have duplicates. Lists are classified into ArrayList, LinkedList, Vectors |
| Queue | FIFO approach, while instantiating Queue interface you can either choose LinkedList or PriorityQueue. |
| Deque | Deque(Double Ended Queue) is used to add or remove elements from both the ends of the Queue(both head and tail) |
| Map | Map contains key-values pairs which don't have any duplicates. Map is implemented in HashMap, TreeMap etc. |