Question

How to create ArrayList of objects in Java

Answer 1

import java.util.ArrayList;

public class TheObject {

    private String s;

    public TheObject(String field) {
        this.s = field;
    }

    public String getFieldValue() {
        return this.s;
    }

    public static void main(String[] args) {

        ArrayList<TheObject> alist = new ArrayList<>();
        
        alist.add(new TheObject("java"));
        alist.add(new TheObject("c"));
        alist.add(new TheObject("c++"));
        alist.add(new TheObject("python"));
        alist.add(new TheObject("c#"));        
        alist.add(new TheObject("php"));
        alist.add(new TheObject("node.js"));

        for (TheObject obj : alist) {
            System.out.println(obj.getFieldValue());
        }
    }
}




/*
run:
 
java
c
c++
python
c#
php
node.js
 
*/

 

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