CODEWITHSUNDEEP
javaarraylist
sobm
sobm

Reputation: 31

Print line ArrayList

When I try to use print line to see my array list, the way it's getting printed is not how I want it to be. What do I need to change to receive just the name?

This is how I am adding a new contact:

public class ContactGroup
{
ArrayList<Contact> contactList= new ArrayList<Contact>();

Public void addContact(String aCName)
{
Contact contact= new Contact(aCName);
contactList.add(contact);
}


public class Contact
{
private String name;

public Contact(String aCName)
{
   super();
   this.name = aCName;
}
}

Upvotes: 1

Views: 93

Answers (5)

Asuna
Asuna

Reputation: 43

You can override the toString() method in any object class

@Override
public String toString(){return "My Text to display";}

Upvotes: 1

prasadmadanayake
prasadmadanayake

Reputation: 1435

you should add a toString() implementation to Contact class

public class Contact{
     private String Name;
     public Contact(String name){
          this.Name=name;
     }

    // add toString method here
    @Override
    public String toString(){
         return "This is  a Contact of :"+this.Name;
    }
}

Upvotes: 0

Arnab Biswas
Arnab Biswas

Reputation: 4605

You need to implement toString() method inside your class containing the ArrayList. Please follow the best practices suggested in EffectiveJava while implementing the toString() method.

Upvotes: 0

techPackets
techPackets

Reputation: 4516

Override toString() method in your class Contact

public class Contact
{
private String name;

public Contact(String aCName)
{
   super();
   this.name = aCName;
}

@Override
public String toString()
{
return "contact name " + this.name; //say you want to print the name property
}
}

Upvotes: 0

akhil_mittal
akhil_mittal

Reputation: 24177

public static void main(String[] args) {
    List<Contact> contactList= new ArrayList<Contact>();
    // code to insert contact in list
    for(Contact contact : contactList) {
        System.out.println(contact.getName());
    }
}

Did you try this to print name only? Another option is to override toString() method as:

public class Contact {
    private  String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Contact(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return "Contact{" +
                "name='" + name + '\'' +
                '}';
    }
}

And then use it as:

public static void main(String[] args) {
        List<Contact> contactList= new ArrayList<Contact>();
        // code to insert contact in list
        for(Contact contact : contactList) {
            System.out.println(contact);
        }
    }

Upvotes: 3

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