Codecademy > Learn Java > GeneralizationsD.java Sample Solution

import java.util.*;

public class GeneralizationsD {
public static void main(String[] args) {

ArrayList<String> sports = new
ArrayList<String>();
   
    sports.add("Football");
    sports.add("Boxing");

for(String sport : sports) {
System.out.println(sport);
}

//Major cities and the year they were founded
HashMap<String, Integer> majorCities = new HashMap<String, Integer>();

majorCities.put("New York", 1624);
majorCities.put("London", 43);
majorCities.put("Mexico City", 1521);
majorCities.put("Sao Paulo", 1554);


for (String city : majorCities.keySet()) {

System.out.println(city + " was founded in " + majorCities.get(city));

}



}
}

Codecademy > Learn Java > Iterating over a HashMap Sample Solution

import java.util.HashMap;

public class RestaurantForEach {
public static void main(String[] args) {

HashMap<String, Integer> restaurantMenu = new HashMap<String, Integer>();

restaurantMenu.put("Turkey Burger", 13);
restaurantMenu.put("Naan Pizza", 11);
restaurantMenu.put("Cranberry Kale Salad", 10);

System.out.println(restaurantMenu.size());

for (String item : restaurantMenu.keySet()) {

System.out.println("A " + item + " costs " + restaurantMenu.get(item) + " dollars.");

}

}
}

Codecademy > Learn Java > HashMap: Access Sample Solution

import java.util.HashMap;

public class Restaurant {
public static void main(String[] args) {
HashMap<String, Integer> restaurantMenu = new HashMap<String, Integer>();
    restaurantMenu.put("Turkey Burger", 13);
    restaurantMenu.put("Naan Pizza", 11);
    restaurantMenu.put("Cranberry Kale Salad", 10);
    System.out.println( restaurantMenu.get("Naan Pizza") );
}
}

Codecademy > Learn Java > HashMap: Manipulation Sample Solution

import java.util.HashMap;

public class Restaurant {
public static void main(String[] args) {
HashMap<String, Integer> restaurantMenu = new HashMap<String, Integer>();
    restaurantMenu.put("Turkey Burger", 13);
    restaurantMenu.put("Naan Pizza", 11);
    restaurantMenu.put("Cranberry Kale Salad", 10);
}
}

Codecademy > Learn Java > HashMap Sample Solution

import java.util.HashMap;

public class Restaurant {
public static void main(String[] args) {
HashMap<String, Integer> restaurantMenu = new HashMap<String, Integer>();
}
}

Codecademy > Learn Java > For Each Loop Sample Solution

import java.util.ArrayList;

public class TemperaturesForEach {
public static void main(String[] args) {

ArrayList<Integer> weeklyTemperatures = new ArrayList<Integer>();
weeklyTemperatures.add(78);
weeklyTemperatures.add(67);
weeklyTemperatures.add(89);
weeklyTemperatures.add(94);

for (Integer temperature : weeklyTemperatures) {
System.out.println(temperature);
}

}
}

Codecademy > Learn Java > Iterating over an ArrayList Sample Solution

import java.util.ArrayList;

public class TemperaturesC {

public static void main(String[] args) {

ArrayList<Integer> weeklyTemperatures = new ArrayList<Integer>();
weeklyTemperatures.add(78);
weeklyTemperatures.add(67);
weeklyTemperatures.add(89);
weeklyTemperatures.add(94);
weeklyTemperatures.add(2, 111);

for (int j = 0; j < weeklyTemperatures.size(); j++) {
 System.out.println( weeklyTemperatures.get(j) );
}

}
}

Codecademy > Learn Java > ArrayList: Insertion Sample Solution

import java.util.ArrayList;

public class TemperaturesB {

public static void main(String[] args) {

ArrayList<Integer> weeklyTemperatures = new ArrayList<Integer>();
weeklyTemperatures.add(78);
weeklyTemperatures.add(67);
weeklyTemperatures.add(89);
weeklyTemperatures.add(94);
   
    weeklyTemperatures.add(2, 111);
    System.out.println(weeklyTemperatures.get(3));

}
}

Codecademy > Learn Java > ArrayList: Access Sample Solution

import java.util.ArrayList;

public class Temperatures {

public static void main(String[] args) {
ArrayList<Integer> weeklyTemperatures = new ArrayList<Integer>();
    weeklyTemperatures.add(78);
    weeklyTemperatures.add(67);
    weeklyTemperatures.add(89);
    weeklyTemperatures.add(94);
    System.out.println(weeklyTemperatures.get(1));
}
}

Codecademy > Learn Java > ArrayList: Manipulation Sample Solution

import java.util.ArrayList;

public class Temperatures {

public static void main(String[] args) {
ArrayList<Integer> weeklyTemperatures = new ArrayList<Integer>();
                weeklyTemperatures.add(78);
                weeklyTemperatures.add(67);
                weeklyTemperatures.add(89);
                weeklyTemperatures.add(94);
}
}

Codecademy > Learn Java > ArrayList Sample Solution

import java.util.ArrayList;

public class Temperatures {

public static void main(String[] args) {
ArrayList<Integer> weeklyTemperatures = new ArrayList<Integer>();
}
}

Codecademy > Learn Java > For Loop Sample Solution

public class For {
public static void main(String[] args) {

for (int waterLevel = 0; waterLevel < 7; waterLevel++) {

System.out.println("The pool's water level is at " + waterLevel + " feet.");

}

}

}

Codecademy > Learn Java > Generalizations Coffee.java Sample Solution

class Coffee extends Beverage{

public Coffee() {

}

public void addSugar(int cubes) {

System.out.println("You added " + cubes + " sugar cubes.");

}

public static void main(String[] args) {
Coffee myOrder = new Coffee();
     myOrder.addSugar(2);
     myOrder.isFull();
}
}

Codecademy > Learn Java > Inheritance Sample Solution

class Dog extends Animal{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }
 
  public void bark() {
    System.out.println("Woof!");
  }
 
  public void run(int feet) {
    System.out.println("Your dog ran " + feet + " feet!");
  }
 
  public int getAge() {
    return age;
  }

public static void main(String[] args) {
Dog spike = new Dog(1);
    spike.bark();
    spike.run(100);
    int spikeAge = spike.getAge();
    System.out.println(spikeAge);
    spike.checkStatus();
}

}

Codecademy > Learn Java > Using Methods: II Sample Solution

class Dog{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }
 
  public void bark() {
    System.out.println("Woof!");
  }
 
  public void run(int feet) {
    System.out.println("Your dog ran " + feet + " feet!");
  }
 
  public int getAge() {
    return age;
  }

public static void main(String[] args) {
Dog spike = new Dog(1);
    spike.bark();
    spike.run(100);
    int spikeAge = spike.getAge();
    System.out.println(spikeAge);
}

}

Codecademy > Learn Java > Methods: II Sample Solution

class Dog{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }
 
  public void bark() {
    System.out.println("Woof!");
  }
 
  public void run(int feet) {
    System.out.println("Your dog ran " + feet + " feet!");
  }

public static void main(String[] args) {
Dog spike = new Dog(1);
    spike.bark();
    spike.run(100);
}

}

Codecademy > Learn Java > Using Methods: I Sample Solution

class Dog{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }
 
  public void bark() {
    System.out.println("Woof!");
  }

public static void main(String[] args) {
Dog spike = new Dog(1);
                spike.bark();
}

}

Codecademy > Learn Java > Methods: I Sample Solution

class Dog{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }
 
  public void bark() {
    System.out.println("Woof!");
  }

public static void main(String[] args) {
Dog spike = new Dog(1);
}

}

Codecademy > Learn Java > Objects Sample Solution

class Dog{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }

public static void main(String[] args) {
Dog spike = new Dog(1);
}

}

Codecademy > Learn Java > Classes: Constructor Parameters Sample Solution

class Dog{
 
  int age;

  public Dog(int dogsAge){
age = dogsAge;
  }

public static void main(String[] args) {

}

}

Codecademy > Learn Java > Classes: Instance Variables Sample Solution

class Dog{
 
  int age;

  public Dog(){

  }

public static void main(String[] args) {

}

}

Codecademy > Learn Java > Classes: Constructors Sample Solution

class Dog{

  public Dog(){

  }

public static void main(String[] args) {

}

}

Codecademy > Learn Java > Classes: Syntax Sample Solution

class Dog{




public static void main(String[] args) {

}

}

Codecademy > Learn Java > GeneralizationsB.java Sample Solution

public class GeneralizationsB {
public static void main(String[] args) {

// ( 3 >= 3 && !(true || true) )
boolean tricky = false;

if(2015 > 2016) {

System.out.println("Stuck in the past...");

}else {

System.out.println("Upgraded to the future!");

}


int subwayTrain = 5;

switch (subwayTrain){

case 1 : System.out.println("This is a South Ferry bound train!");
break;
case 5 : System.out.println("This is a Brooklyn bound train!");
break;
case 7 : System.out.println("This is a Queens bound train!");
break;
default:
System.out.println("I'm not sure where that train goes...");

}

}
}

Codecademy > Learn Java > Switch Statement Sample Solution

public class Switch {
public static void main(String[] args) {

char penaltyKick = 'L';

switch (penaltyKick) {

case 'L': System.out.println("Messi shoots to the left and scores!");
break;
case 'R': System.out.println("Messi shoots to the right and misses the goal!");
break;
case 'C': System.out.println("Messi shoots down the center, but the keeper blocks it!");
break;
default:
System.out.println("Messi is in position...");

}

}
}

Codecademy > Learn Java > Ternary Conditional Sample Solution

public class Ternary {
public static void main(String[] args) {

int fuelLevel = 3;

char canDrive = (fuelLevel > 0) ? 'Y' : 'N';
System.out.println(canDrive);

}
}

Codecademy > Learn Java > If-ElseIf-Else Statement Sample Solution

public class IfElseIf {
public static void main(String[] args) {

int round = 7;

if (round > 12) {

System.out.println("The match is over!");

} else if (round > 0) {

System.out.println("The match is underway!");

} else {

System.out.println("The boxing match hasn't started yet.");

}
}
}

Codecademy > Learn Java > If-Else Statement Sample Solution

public class IfElse {
public static void main(String[] args) {

if (7 < 7) {

System.out.println("Try again...");

} else {

System.out.println("Success!");

}

}
}

Codecademy > Learn Java > If Statement Sample Solution

public class If {
public static void main(String[] args) {

if (true) {

System.out.println("Access granted.");

}

}
}

Codecademy > Learn Java > Precedence Sample Solution

public class Precedence {
public static void main(String[] args) {

boolean riddle = !( 1 < 8 || (5 > 2 && 3 < 5));
System.out.println(riddle);

}
}

Codecademy > Learn Java > Boolean Operators: ! Sample Solution

public class Not {
public static void main(String[] args) {

System.out.println(!false);
System.out.println( !(5>=1) );

}
}

Codecademy > Learn Java > Boolean Operators: || Sample Solution

public class Or {
public static void main(String[] args) {

System.out.println(true || false);

}
}

Codecademy > Learn Java > Boolean Operators: && Sample Solution

public class And {
public static void main(String[] args) {

System.out.println(true && true);

}
}

Codecademy > Learn Java > Generalizations Sample Solution

//Sample Solution

public class Generalizations {
public static void main(String[] args) {


boolean isComplete = true;
int awesomeLevel = 121;
int epicLevel = awesomeLevel * 2;
System.out.println(epicLevel);


}
}

Codecademy > Learn Java > Equality Operators Sample Solution

public class EqualityOperators {
public static void main(String[] args) {

System.out.println(true != false);

}
}

Codecademy > Learn Java > Relational Operators Sample Solution

public class RelationalOperators {
public static void main(String[] args) {

System.out.println(3 < 7);

}
}

Codecademy > Learn Java > Math: %

//Sample Solution

public class Modulo {
public static void main(String[] args) {

int myRemainder = 6 % 4;
System.out.println(myRemainder);

}
}

Codecademy > Learn Java > Math: +, -, *, and /

//Sample Solution

public class Arithmetic {
public static void main(String[] args) {

int myNumber = 3 * 7;
System.out.println(myNumber);

}
}

Codecademy > Learn Java > Comments Sample Solution

public class Comments {
public static void main(String[] args) {

//System.out.println("Noise!");

/*

anything you like!

*/
}
}

Codecademy > Learn Java > Whitespace Sample Solution

public class WhiteSpace {
public static void main(String[] args) {

boolean isFormatted = false;
                System.out.println(isFormatted);

}
}

Codecademy > Learn Java > Variables Sample Solution

public class Variables {
public static void main(String[] args) {

int myNumber = 42;
boolean isFun = true;
char movieRating = 'A';

}
}