Making the array print clear english?

[orry kaplan]

i have my code here but whenever i print, a part of the print is showing up in an unreadable format. any help as to what i need to do?

import java.util.ArrayList;
import java.util.Arrays;


public class Lab {
	public static void main(String args[])
	{
		
		Data x = new Data("Fred",21);
		Data p = new Data("Jo",43);
		Data r = new Data("Harry",78); 
		Data o = new Data("Zoe",37);
		
		ArrayList<Data> list = new ArrayList<Data>();
		list.add(x);
	        list.add(p);
	        list.add(r);
		list.add(o);
		
		
		for(int i = 0; i < list.size(); ++i)
		{
		System.out.println(list.get(i).GetName()+" "+list.get(i).GetAge());
		}
		System.out.println(list.toString());
	        System.out.println("");

prints:

Fred 21
Jo 43
Harry 78
Zoe 37
[Data@1540e19d, Data@677327b6, Data@14ae5a5, Data@7f31245a]

[Henry Wong]

When you try to print any object, that is not a string, the println() method will call the toString() method of the object, in order to get the string representation, so that it can print it.

Since your Data class, did not implement the toString() method, it will inherit it from its super class. And with the Object class, the toString() method returns the name of the class along with the Identity hash for the instance.

Henry

[orry kaplan]

Henry Wong wrote:
When you try to print any object, that is not a string, the println() method will call the toString() method of the object, in order to get the string representation, so that it can print it.

Since your Data class, did not implement the toString() method, it will inherit it from its super class. And with the Object class, the toString() method returns the name of the class along with the Identity hash for the instance.

Henry

Would this be more appropriate?

for(int i = 0; i < list.size(); ++i)
		{
		System.out.println(list.get(i).GetName()+", "+list.get(i).GetAge());
		}
		System.out.println(Arrays.toString(list));	    
		System.out.println("");

[Ganesh Patekar]

orry kaplan wrote:Would this be more appropriate?

for(int i = 0; i < list.size(); ++i)
        {
        System.out.println(list.get(i).GetName()+", "+list.get(i).GetAge());
        }
        System.out.println(Arrays.toString(list));      
        System.out.println("");

Did you compile and run this code? what does this print?

Method name getName and getAge woould look better rather than GetName and GetAge.

Posting complete code would definitely increase the chances of getting answer.

[Campbell Ritchie]

orry kaplan wrote:. . . Would this be more appropriate? . . .

No. Deciding what to print shou‍ld be a task done inside the class, and you are here trying to do it outside the class. You shou‍ld override the toString method.