Object Class

Object Class with toArray Method

Object class is super class of all system define classes like Integer, Double, Float, String and many more. Object classes can store any types of data and then use easily.

In this blog, we will see how to store Integer object data store in Object array using toArray() method.


Let’s see Example on Object Class


import java.util.*;

class collection3


                public static void main(String args[])


                                ArrayList<Integer> list1 = new ArrayList<Integer>();

                                list1.add(new Integer(67));

                                list1.add(new Integer(89));

                                list1.add(new Integer(45));

                                list1.add(new Integer(39));

                                list1.add(new Integer(90));


                                Object ob[] = list1.toArray();       // All List data now store in ob[] Array


                                int sum = 0;

                                for(int i=0;i<ob.length;i++)


                                                sum = sum + ((Integer)ob[i]).intValue();


                                System.out.println(“Sum = ” + sum);





Sum = 330


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Hello, I am Maddy a Java blogger, trainer and developer

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