ArrayList of object

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Understand the following program--------------------------------------
Main.java
------------------------------------

 import java.util.*;

 public class Main {

 public static void main(String[] args) {

Scanner sc=new Scanner(System.in);
List<Team> l=new ArrayList<Team>();
int n=sc.nextInt();

for(int i=0;i<n;i++)
{
System.out.println("Enter the team name");
String name=sc.next();
System.out.println("Enter the team id");
int id=sc.nextInt();

l.add(new Team(name,id));
}
PrintTheList p=new PrintTheList();
p.Print(l);
}

 }


Team.java
------------------------------------------


public class Team {

String name;
int id;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public Team(String name, int id) {
super();
this.name = name;
this.id = id;
}
@Override
public String toString() {
return "Team [name=" + name + ", id=" + id + "]";
}
}


PrintTheList.java
-------------------------------------------------------
package Practice1_ARrayListOfObject;

import java.util.List;

public class PrintTheList {

public void Print(List<Team> l)
{
for(Team t:l)
{
System.out.println(t);
         //or
//System.out.println("id is "+t.getId()+" Name is "+t.getName());
}
}
}

Explanations:-

In the above program i created the array list<Team> that means the array list stores the object of Team class which have two attributes such as name and id.
Then i call a function from another class i.e. PrintTheList and pass the array list to that class.In that class i printed all the values.

In the line for(Team t:l)  i have used for each loop.As i have stored all the element in arraylist as objects of class Team so its madetory while using forEach loop to store it in a same object reference i.e. Team t.

System.out.println(t);

While i print the above line that means i am printing the team object.As i am printing the team object the toString() of Team class will be called which we have overriden in Team class

@Override
public String toString() {
return "Team [name=" + name + ", id=" + id + "]";
}

 and print accordingly.

Otherwise we can write-

System.out.println("id is "+t.getId()+" Name is "+t.getName());

Here we are using get method (getter setter methods in Team class) to get the name and id of the object.

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