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Java vanClass giving cannot find symbol error [closed]

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I have code that has several classes with different cars and some classes. Below is my code, I'm not sure why vanClass van; is not working as it is basically a copy paste of the past classes that work. Any help is appreciated. To clarify, I am only having problems with the last few lines of the autopark class where I initiate vanClass as van and go from there.
import java.util.*;
class sedan {
String make;
String model;
String color;
int year;
double price;
boolean fourWD;
boolean isheavyDuty;
String carries;
public sedan(String initMake, String initModel, String initColor, int initYear, double initPrice) {
make = initMake;
model = initModel;
color = initColor;
year = initYear;
price = initPrice;
}
#Override
public String toString() {
String name = "Sedan";
String main = (color + " " + make + " " + model + " " + name + " (" + year + ") costs $" + price);
return main;
}
}
class SUV {
String make;
String model;
String color;
int year;
double price;
boolean fourWD;
String carries;
public SUV(String initMake, String initModel, String initColor, int initYear, double initPrice, boolean initFourWD){
make = initMake;
model = initModel;
color = initColor;
year = initYear;
price = initPrice;
fourWD = initFourWD;
}
public String toString() {
String name = "SUV";
String main = new String();
if (fourWD) {
main = ("4WD " + color + " " + make + " " + model + " " + name + " (" + year + ") costs $" + price);
}
else {
main = (color + " " + make + " " + model + " " + name + " (" + year + ") costs $" + price);
}
return main;
}
}
class truckClass {
String make;
String model;
String color;
int year;
double price;
boolean fourWD;
boolean isheavyDuty;
String carries;
public truckClass(String initMake, String initModel, int initYear, double initPrice, boolean initisheavyDuty, String initCarries){
make = initMake;
model = initModel;
year = initYear;
price = initPrice;
isheavyDuty = initisheavyDuty;
carries = initCarries;
}
public String toString() {
String name = "Truck";
String main = (make + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price);
return main;
}
class vanClass {
String make;
String model;
int year;
double price;
boolean isCovered;
String carries;
public vanClass(String initMake, String initModel, int initYear, double initPrice, boolean initisCovered, String initCarries){
make = initMake;
model = initModel;
year = initYear;
price = initPrice;
isCovered = initisCovered;
carries = initCarries;
}
public String toString() {
String name;
String main;
if (isCovered()){
name = "covered Van";
String main = (make + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price);
}
else {
name = "Van";
String main = (make + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price);
}
return main;
}
}
public class autoPark {
public static void main(String args[]) {
sedan sedan1; // declaring cars object by name sedan1
sedan1 = new sedan("Ford" , "Model-1" , "white" , 2015, 20000); // initialising sedan1 using sedan constructor
System.out.println(sedan1); // printing sedan1 for invoking toString() method
SUV suv; // declaring cars object by name suv
suv = new SUV("Ford" , "Model-1" , "white" , 2015, 20000, true); // initialising suv using SUV constructor
System.out.println(suv); // printing suv for invoking toString() method
truckClass truck; //declaring cars object by name truck
truck = new truckClass("Ford" , "Model-1" , 2015, 20000, true, "2"); // initialising truck using truck constructor
System.out.println(truck); // printing truck for invoking toString() method
vanClass van;
van = new vanClass("Ford" , "Model-1" , 2015, 20000, true, "2";
System.out.println(van);
}
}

I came across 4 issues
missing } just before starting vanClass
missing ) after van = new vanClass("Ford" , "Model-1" , 2015, 20000, true, "2");
extra pair of parenthesis after isCovered which is a member data instead of method
Declaring main as String twice inside the toString method of SUV class
import java.util.*;
class sedan {
String make;
String model;
String color;
int year;
double price;
boolean fourWD;
boolean isheavyDuty;
String carries;
public sedan(String initMake, String initModel, String initColor, int initYear, double initPrice) {
make = initMake;
model = initModel;
color = initColor;
year = initYear;
price = initPrice;
}
#Override
public String toString() {
String name = "Sedan";
String main = (color + " " + make + " " + model + " " + name + " (" + year + ") costs $" + price);
return main;
}
}
class SUV {
String make;
String model;
String color;
int year;
double price;
boolean fourWD;
String carries;
public SUV(String initMake, String initModel, String initColor, int initYear, double initPrice, boolean initFourWD){
make = initMake;
model = initModel;
color = initColor;
year = initYear;
price = initPrice;
fourWD = initFourWD;
}
public String toString() {
String name = "SUV";
String main = new String();
if (fourWD) {
main = ("4WD " + color + " " + make + " " + model + " " + name + " (" + year + ") costs $" + price);
}
else {
main = (color + " " + make + " " + model + " " + name + " (" + year + ") costs $" + price);
}
return main;
}
}
class truckClass {
String make;
String model;
String color;
int year;
double price;
boolean fourWD;
boolean isheavyDuty;
String carries;
public truckClass(String initMake, String initModel, int initYear, double initPrice, boolean initisheavyDuty, String initCarries){
make = initMake;
model = initModel;
year = initYear;
price = initPrice;
isheavyDuty = initisheavyDuty;
carries = initCarries;
}
public String toString() {
String name = "Truck";
String main = (make + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price);
return main;
}
}
class vanClass {
String make;
String model;
int year;
double price;
boolean isCovered;
String carries;
public vanClass(String initMake, String initModel, int initYear, double initPrice, boolean initisCovered, String initCarries){
make = initMake;
model = initModel;
year = initYear;
price = initPrice;
isCovered = initisCovered;
carries = initCarries;
}
public String toString() {
String name;
String main;
if (isCovered){
name = "covered Van";
main = (make + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price);
}
else {
name = "Van";
main = (make + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price);
}
return main;
}
}
public class autoPark {
public static void main(String args[]) {
sedan sedan1; // declaring cars object by name sedan1
sedan1 = new sedan("Ford" , "Model-1" , "white" , 2015, 20000); // initialising sedan1 using sedan constructor
System.out.println(sedan1); // printing sedan1 for invoking toString() method
SUV suv; // declaring cars object by name suv
suv = new SUV("Ford" , "Model-1" , "white" , 2015, 20000, true); // initialising suv using SUV constructor
System.out.println(suv); // printing suv for invoking toString() method
truckClass truck; // declaring cars object by name truck
truck = new truckClass("Ford" , "Model-1" , 2015, 20000, true, "2"); // initialising truck using truck constructor
System.out.println(truck); // printing truck for invoking toString() method
vanClass van;
van = new vanClass("Ford" , "Model-1" , 2015, 20000, true, "2");
System.out.println(van);
}
}
You need to consider using inheritance as mentioned by others.

I fixed and refactored your class using inheritance:
abstract class Vehicle{
protected String maker;
protected String model;
protected int year;
protected double price;
public Vehicle(String maker, String model, int year, double price) {
this.maker=maker;
this.model=model;
this.year=year;
this.price=price;
}
abstract String getType();
#Override
public String toString() {
return maker + " " + model + " " + getType() + " (" + year + ") costs $" + price;
}
}
abstract class HeavyVehicle extends Vehicle{
protected String carries;
public HeavyVehicle(String maker, String model, int year, double price, String carries) {
super(maker, model, year, price);
this.carries=carries;
}
}
class SUV extends HeavyVehicle{
String color;
boolean fourWD;
public SUV(String maker, String model, String initColor, int year, double price,
boolean initFourWD) {
super(maker,model,year,price,"1");
color = initColor;
fourWD = initFourWD;
}
public String toString() {
StringBuilder sb = new StringBuilder();
if (fourWD) {
sb.append("4WD ");
}
sb.append(color + " " + super.toString());
return sb.toString();
}
#Override
String getType() {
return "SUV";
}
}
class Truck extends HeavyVehicle{
public Truck(String maker, String model, int year, double price,String carries) {
super(maker,model,year,price,carries);
}
public String toString() {
return maker + " " + model + " " + getType() + " (" + year + ") carries" + carries + " costs $" + price;
}
#Override
String getType() {
return "Truck";
}
}
class Van extends HeavyVehicle{
boolean isCovered;
public Van(String maker, String model, int year, double price, boolean isCovered, String carries){
super(maker,model,year,price,carries);
this.isCovered = isCovered;
}
public String toString() {
String name = isCovered ? "covered Van" : getType();
return maker + " " + model + " " + name + " (" + year + ") carries" + carries + " costs $" + price;
}
#Override
String getType() {
return "Van";
}
}
class Sedan extends Vehicle{
String color;
public Sedan(String maker, String model, String color, int year, double price) {
super(maker,model,year,price);
this.color = color;
}
#Override
public String toString() {
return color + " " + super.toString();
}
#Override
String getType() {
return "Sedan";
}
}
public class Main {
public static void main(String args[]) {
Sedan sedan1; // declaring cars object by name sedan1
sedan1 = new Sedan("Ford", "Model-1", "white", 2015, 20000); // initialising sedan1 using sedan constructor
System.out.println(sedan1); // printing sedan1 for invoking toString() method
SUV suv; // declaring cars object by name suv
suv = new SUV("Ford", "Model-1", "white", 2015, 20000, true); // initialising suv using SUV constructor
System.out.println(suv); // printing suv for invoking toString() method
Truck truck; // declaring cars object by name truck
truck = new Truck("Ford", "Model-1", 2015, 20000, "2"); // initialising truck using truck constructor
System.out.println(truck); // printing truck for invoking toString() method
Van van;
van = new Van("Ford", "Model-1", 2015, 20000, true, "2");
System.out.println(van);
}
}

Was missing a } and ). Silly mistake

How to check is there a record in ArrayList Java

I'm writing a program that creates a new student with his own ID. And after that I want to check by id does a student exists. What I am doing wrong right now? Because all the time only else statement works.
ArrayList<Studentas> studentuSarasas = new ArrayList<Studentas>();
protected int studentoID;
protected String studentoVardas;
protected String studentoPavarde;
protected String pirmasDalykas;
protected String antrasDalykas;
protected String treciasDalykas;
protected String ketvirtasDalykas;
protected String penktasDalykas;
protected int pirmoPaz;
protected int antroPaz;
protected int trecioPaz;
protected int ketvirtoPaz;
protected int penktoPaz;
Studentas() {
}
public Studentas(int studentoID, String studentoVardas, String studentoPavarde, String pirmasDalykas, String antrasDalykas, String treciasDalykas, String ketvirtasDalykas, String penktasDalykas, int pirmoPaz, int antroPaz, int trecioPaz, int ketvirtoPaz, int penktoPaz) {
this.studentoID = studentoID;
this.studentoVardas = studentoVardas;
this.studentoPavarde = studentoPavarde;
this.pirmasDalykas = pirmasDalykas;
this.antrasDalykas = antrasDalykas;
this.treciasDalykas = treciasDalykas;
this.ketvirtasDalykas = ketvirtasDalykas;
this.penktasDalykas = penktasDalykas;
this.pirmoPaz = pirmoPaz;
this.antroPaz = antroPaz;
this.trecioPaz = trecioPaz;
this.ketvirtoPaz = ketvirtoPaz;
this.penktoPaz = penktoPaz;
}
#Override
public String toString() {
return "Studento numeris: " + studentoID +
", Vardas: " + studentoVardas +
", Pavarde: " + studentoPavarde +
", Pasirenkamas dalykas: " + pirmasDalykas +
", Pasirenkamas dalykas: " + antrasDalykas +
", Pasirenkamas dalykas: " + treciasDalykas +
", Pasirenkamas dalykas: " + ketvirtasDalykas +
", Pasirenkamas dalykas: " + penktasDalykas +
", Pirmojo dalyko pazymys: " + pirmoPaz +
", Antrojo dalyko pazymys: " + antroPaz +
", Treciojo dalyko pazymys: " + trecioPaz +
", Ketvirtojo dalyko pazymys: " + ketvirtoPaz +
", Penktojo dalyko pazymys: " + penktoPaz;
}
Here's how I create my student:
private void studentoSukurimas() {
System.out.println("ID, name, surn, studthing1- studthing5 ,averages from 1 to 5");
Scanner SI = new Scanner(System.in);
String[] iveda = SI.nextLine().split(" ");
studentuSarasas.add(new Studentas(Integer.parseInt(iveda[0]), iveda[1], iveda[2], iveda[3], iveda[4], iveda[5], iveda[6], iveda[7], Integer.parseInt(iveda[8]), Integer.parseInt(iveda[9]), Integer.parseInt(iveda[10]), Integer.parseInt(iveda[11]), Integer.parseInt(iveda[12])));
System.out.println("gut");
Pasirinkimai();
}
And this is my code where I check does the student by ID exists:
private void studentasPagalId() {
System.out.println("student id");
Scanner SI = new Scanner(System.in);
int userSelects = Integer.parseInt(SI.nextLine());
String q = Integer.toString(userSelects);
if(q.equals(getStudentoID())) {
System.out.println("+");
} else {
System.out.println("-");
}
Pasirinkimai();
}

if you try to check every element of a list, you can use a for.
for(int i=0; i<studentuSarasas.size();i++){
if(q.equals(studentuSarasas.get(i).getStudentoID()))
...
}

How to Pair Up Random Indices of an ArrayList with each other

I am currently working on a project where I read in a CSV file that contains a list of Pokemon, as well as their traits. I am trying to run a battle simulator that randomly pairs up these Pokemon with each other and compares their combatScore, which is a result of a simple calculation using their traits such as speed, attack, defense, etc. I read in all of the Pokemon from the CSV file into an ArrayList of type Pokemon. Now, I want to randomly pair them up with each other and compare their combatScore; whoever has the higher score moves on to the next round, and the loser is placed into another ArrayList of defeated Pokemon. However, I do not know how to randomly pair up the Pokemon. Here is my code of the main class so far:
import java.io.*;
import java.util.ArrayList;
import java.util.Random;
public class assign1 {
public static void main(String[] args) throws IOException {
String csvFile = args[0]; //path to CSV file
String writeFile = args[1]; //name of output file that contains list of Pokemon and their traits
BufferedReader br = null;
String line = "";
String cvsSplitBy = ",";
ArrayList<Pokemon> population = new ArrayList<Pokemon>();
FileWriter fileWriter = new FileWriter(writeFile);
BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
try {
br = new BufferedReader(new FileReader(csvFile));
String headerLine = br.readLine(); // used to read first line of CSV file that contains headers
while ((line = br.readLine()) != null) {
Pokemon creature = new Pokemon();
// use comma as separator
String[] pokemon = line.split(cvsSplitBy);
creature.setId(pokemon[0]);
creature.setName(pokemon[1]);
creature.setType1(pokemon[2]);
creature.setType2(pokemon[3]);
creature.setTotal(pokemon[4]);
creature.setHp(Integer.parseInt(pokemon[5]));
creature.setAttack(Integer.parseInt(pokemon[6]));
creature.setDefense(Integer.parseInt(pokemon[7]));
creature.setSpAtk(Integer.parseInt(pokemon[8]));
creature.setSpDef(Integer.parseInt(pokemon[9]));
creature.setSpeed(Integer.parseInt(pokemon[10]));
creature.setGeneration(Integer.parseInt(pokemon[11]));
creature.setLegendary(Boolean.parseBoolean(pokemon[12]));
creature.getCombatScore();
// Adds individual Pokemon to the population ArrayList
population.add(creature);
// Writes to pokemon.txt the list of creatures
bufferedWriter.write(creature.getId() + ". "
+ "Name: " + creature.getName() + ": "
+ "Type 1: " + creature.getType1() + ", "
+ "Type 2: " + creature.getType2() + ", "
+ "Total: " + creature.getTotal() + ", "
+ "HP: " + creature.getHp() + ", "
+ "Attack: " + creature.getAttack() + ", "
+ "Defense: " + creature.getDefense() + ", "
+ "Special Attack: " + creature.getSpAtk() + ", "
+ "Special Defense: " + creature.getSpDef() + ", "
+ "Speed: " + creature.getSpeed() + ", "
+ "Generation: " + creature.getGeneration() + ", "
+ "Legendary? " + creature.isLegendary() + ", "
+ "Score: " + creature.getCombatScore());
bufferedWriter.newLine();
}
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
finally {
if (br != null) {
try {
br.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
}
bufferedWriter.close();
}
}
And here is the code for my Pokemon class:
public class Pokemon {
String id;
String name;
String type1;
String type2;
String total;
int hp;
int attack;
int defense;
int spAtk;
int spDef;
int speed;
int generation;
boolean legendary;
public Pokemon() {}
public String getId () {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType1() {
return type1;
}
public void setType1(String type1) {
this.type1 = type1;
}
public String getType2() {
return type2;
}
public void setType2(String type2) {
this.type2 = type2;
}
public String getTotal() {
return total;
}
public void setTotal(String total) {
this.total = total;
}
public int getHp() {
return hp;
}
public void setHp(int hp) {
this.hp = hp;
}
public int getAttack() {
return attack;
}
public void setAttack(int attack) {
this.attack = attack;
}
public int getDefense() {
return defense;
}
public void setDefense(int defense) {
this.defense = defense;
}
public int getSpAtk() {
return spAtk;
}
public void setSpAtk(int spAtk) {
this.spAtk = spAtk;
}
public int getSpDef() {
return spDef;
}
public void setSpDef(int spDef) {
this.spDef = spDef;
}
public int getSpeed() {
return speed;
}
public void setSpeed(int speed) {
this.speed = speed;
}
public int getGeneration() {
return generation;
}
public void setGeneration(int generation) {
this.generation = generation;
}
public boolean isLegendary() {
return legendary;
}
public void setLegendary(boolean legendary) {
this.legendary = legendary;
}
public int getCombatScore() {
return (speed/2) * (attack + (spAtk/2)) + (defense + (spDef/2));
}
#Override
public String toString() {
return "Name: " + this.getName()
+ ", Type 1: " + this.getType1()
+ ", Type 2: " + this.getType2()
+ ", Total: " + this.getTotal()
+ ", HP: " + this.getHp()
+ ", Attack: " + this.getAttack()
+ ", Defense: " + this.getDefense()
+ ", Sp. Attack: " + this.getSpAtk()
+ ", Sp. Defense: " + this.getSpDef()
+ ", Generation: " + this.getGeneration()
+ ", Legnedary: " + this.isLegendary()
+ ", Score: " + this.getCombatScore();
}
}
I only want to compare their combatScore values to each other. Any help/suggestions would be much appreciated.

What come to my mind is this. You pick one random item (pokemon) from array list. Remove it from array list. Then you pick one random item again and remove it. Now you have a pair of items. Repeat above step for remaining items in array list until no more items available.
Or you can shuffle whole array list first and then pick item i and item i+1 as pair for i=0,2,4,6,...
Collections.shuffle(pokemonsArrayList);
for (int i=0; i< pokemonsArrayList.size(); i+=2) {
pokemon1 = pokemonsArrayList.get(i);
pokemon2 = pokemonsArrayList.get(i+1);
}
Just make sure that number of elements in ArrayList is even. Otherwise code above will throw exception index out of bound

Since every element in an ArrayList has an index, you can just get a random element from it by calling
Pokemon pokemon1;
Pokemon pokemon2;
pokemon1 = arrayList.get(Math.random()*arrayList.size());
do {
pokemon2 = arrayList.get(Math.random()*arrayList.size());
} while(pokemon1.getId() == pokemon2.getId());
then compare the Pokémon you got out of List1 with the one you got from List2.
You can then of course remove the Pokémon from the List if you wish.
Hope that helps you out!

Null Pointer Exception Error, not sure why

So I had to create a method that separated input string into first/middle/last names, counted the number of "students" created, etc, and then I had to create a class that tested those methods.
public void setName(String newName)
{
String[] nameInput = newName.split(" ");
if(nameInput.length == 0)
{
System.out.println("Error, please enter at least two names.");
newName = null;
}
else if(nameInput.length == 1)
{
firstName = nameInput[0];
middleName = "";
lastName = nameInput[1];
newName = firstName + lastName;
}
else if(nameInput.length == 2)
{
firstName = nameInput[0];
middleName = nameInput[1];
lastName = nameInput[2];
newName = firstName + middleName + lastName;
}
else
{
System.out.println("Error! You can only enter up to three names.");
}
}
public String getName()
{
if (middleName == null)
{
return firstName + " " + lastName;
}
else
return firstName + " " + middleName + " " + lastName;
}
public String getId()
{
return identifier = generateID();
}
#Override
public String toString()
{
return getName() + "\n" + "(" + generateID() + ")";
}
private String generateID()
{
return UUID.randomUUID().toString();
}
and this is the way I am testing the code:
public static void testStudent()
{
System.out.println("Trying to create testStudent1 with a single name...");
testStudent1 = new Student("A");
System.out.println("testStudent1.toString() is " + testStudent1.toString());
System.out.println("testStudent1.getFirstName() is " + testStudent1.getFirstName());
System.out.println("testStudent1.getMiddleName() is " + testStudent1.getMiddleName());
System.out.println("testStudent1.getLastName() is " + testStudent1.getLastName());
System.out.println("Trying to create testStudent2 with two names...");
testStudent1 = new Student("A B");
System.out.println("testStudent2.toString() is " + testStudent2.toString());
System.out.println("testStudent2.getFirstName() is " + testStudent2.getFirstName());
System.out.println("testStudent2.getMiddleName() is " + testStudent2.getMiddleName());
System.out.println("testStudent2.getLastName() is " + testStudent2.getLastName());
System.out.println("Trying to create testStudent3 with three names...");
testStudent1 = new Student("A B C");
System.out.println("testStudent3.toString() is " + testStudent3.toString());
System.out.println("testStudent3.getFirstName() is " + testStudent3.getFirstName());
System.out.println("testStudent3.getMiddleName() is " + testStudent3.getMiddleName());
System.out.println("testStudent3.getLastName() is " + testStudent3.getLastName());
}
I keep running into a null pointer exceptions when it tests toString for a student with 2 names, and I have no clue why.

Edit: The issue is with the testStudent variable in the testStudent() method.
System.out.println("Trying to create testStudent1 with a single name...");
testStudent1 = new Student("A");
System.out.println("testStudent1.toString() is " + testStudent1.toString());
System.out.println("testStudent1.getFirstName() is " + testStudent1.getFirstName());
System.out.println("testStudent1.getMiddleName() is " + testStudent1.getMiddleName());
System.out.println("testStudent1.getLastName() is " + testStudent1.getLastName());
System.out.println("Trying to create testStudent2 with two names...");
Student testStudent2 = new Student("A B");
System.out.println("testStudent2.toString() is " + testStudent2.toString());
System.out.println("testStudent2.getFirstName() is " + testStudent2.getFirstName());
System.out.println("testStudent2.getMiddleName() is " + testStudent2.getMiddleName());
System.out.println("testStudent2.getLastName() is " + testStudent2.getLastName());
System.out.println("Trying to create testStudent3 with three names...");
Student testStudent3 = new Student("A B C");
System.out.println("testStudent3.toString() is " + testStudent3.toString());
System.out.println("testStudent3.getFirstName() is " + testStudent3.getFirstName());
System.out.println("testStudent3.getMiddleName() is " + testStudent3.getMiddleName());
System.out.println("testStudent3.getLastName() is " + testStudent3.getLastName());
Since you are re-using the testStudent1 variable to create a new Object of Student class and not using them to invoke getter functions, it will throw an NPE for testStudent2 and testStudent3 variables.
Answer for old issue: The issue is with your while statement. It will never stop.
You can just find out the count by doing nameInput.length for the String array.
It should be like this:
String[] nameInput = newName.split(" ");
if (nameInput.length == 1)
{
System.out.println("Error, please enter at least two names.");
newName = null;
}
else if (nameInput.length == 2)
{
...
}
else if (nameInput.length == 3)
{
...
}
else
{
...
}

You could use StringTokenizer class to help you with this.
import java.util.StringTokenizer
StringTokenizer test = new StringTokenizer("An example string");
while (test.hasMoreTokens()) {
System.out.println(test.nextToken());
}
Output:
An
example
string.
The countTokens() method can provide how many tokens a string will provide prior processing. That way you will know if you have a middle name or not.

please check trim() method
public static void getName(String newName) {
newName = newName.trim();
String fullName = null;
String[] nameInput = newName.split(" ");
switch (nameInput.length) {
case 2:
fullName = mergeName(nameInput[0], "", nameInput[1]);
break;
case 3:
fullName = mergeName(nameInput[0], nameInput[1], nameInput[2]);
break;
default:
System.out.println("Error, please enter at least two names.");
break;
}
System.out.println(fullName);
}
public static String mergeName(String firstName, String middleName,
String lastName) {
String name = firstName+" " + middleName+" " + lastName;
return name;
}

How can I print out in columns in java

This is where I am printing out and I need it to print in columns.aLeaderboard is an array list with a custom class.it contains several different ints
System.out.println("Position Team Games Played Home Wins Home Draws Home Losses Home Goals For Home Goals Against Away Wins Away Draws Away Losses Away Goals For Away Goals Against Goal Difference Total Points");
for(int counter = 0;counter<teamName.size();counter++)
{
System.out.print((counter + 1) + " " + teamName.get(counter) + " " + (aLeaderboard.get(counter)).getGamesPlayed() + " " + (aLeaderboard.get(counter)).getHomeWins() + " " + (aLeaderboard.get(counter)).getHomeDraws() + " ");
System.out.print((aLeaderboard.get(counter)).getHomeLosses() + " " + (aLeaderboard.get(counter)).getAwayWins() + " " + (aLeaderboard.get(counter)).getAwayWins() + " " + (aLeaderboard.get(counter)).getAwayDraws() + " ");
System.out.print((aLeaderboard.get(counter)).getHomeGoalsFor() + " " + (aLeaderboard.get(counter)).getHomeGoalsAgainst() + " " + (aLeaderboard.get(counter)).getAwayLosses() + " " + (aLeaderboard.get(counter)).getGamesPlayed() + " ");
System.out.print((aLeaderboard.get(counter)).getAwayGoalsFor() + " " + (aLeaderboard.get(counter)).getAwayGoalsAgainst() + " " + (aLeaderboard.get(counter)).getGoalsDifference() + " " + (aLeaderboard.get(counter)).getTotalPoints());
System.out.println();
}

I would use System.out.printf(...) and use a template String to help be sure that all columns line up. Then you could print things out easily in a for loop.
For example:
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.List;
public class Foo4 {
public static void main(String[] args) {
List<Bar4> bar4List = new ArrayList<>();
bar4List.add(new Bar4("Donald", 3, "A", 22.42));
bar4List.add(new Bar4("Duck", 100, "B", Math.PI));
bar4List.add(new Bar4("Herman", 20, "C", Math.sqrt(20)));
String titleTemplate = "%-10s %6s %6s %9s%n";
String template = "%-10s %6d %6s %9s%n";
System.out.printf(titleTemplate, "Name", "Value", "Grade", "Cost");
for (Bar4 bar4 : bar4List) {
System.out.printf(template, bar4.getName(),
bar4.getValue(), bar4.getGrade(), bar4.getCostString());
}
}
}
class Bar4 {
private String name;
private int value;
private String grade;
private double cost;
private NumberFormat currencyFormat = NumberFormat.getCurrencyInstance();
public Bar4(String name, int value, String grade, double cost) {
this.name = name;
this.value = value;
this.grade = grade;
this.cost = cost;
}
public String getName() {
return name;
}
public int getValue() {
return value;
}
public String getGrade() {
return grade;
}
public double getCost() {
return cost;
}
public String getCostString() {
return currencyFormat.format(cost);
}
}
Which would return:
Name Value Grade Cost
Donald 3 A $22.42
Duck 100 B $3.14
Herman 20 C $4.47
For more details on the user of the String format specifiers (i.e., the %6d and %6s above), please look at the Formatter API.