Sunday, February 25, 2018

Java program :Creating collections using ArrayList()

import java.util.*;

class Collection_ArrayList_3
{
    public static void main(String[] args)
    {
        Emp e1=new Emp(111,"AK");
        Emp e2=new Emp(222,"Singh");
        Emp e3=new Emp(333,"Software Engineer");
        Emp e4=new Emp(444,"Web Applications");
       
        ArrayList<Emp> al1=new ArrayList<Emp>();
        al1.add(e1);
        al1.add(e2);
       
        ArrayList<Emp> al2=new ArrayList<Emp>();
        al2.addAll(al1);
        al2.add(e3);
        al2.add(e4);
       
        System.out.println(al2.contains(e1));
        System.out.println(al2.containsAll(al1));
       
        al2.remove(e1);
        System.out.println(al2.contains(e1));
        System.out.println(al2.containsAll(al1));
       
        for(Emp e:al2)
        {
            System.out.println(e.id+"------"+e.name);
        }
       
    }
}   

Thanks
Happy programming!

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