Practical 2 :- Practical on List Interface

import java.util.ArrayList;
import java.util.List;

/* Practical 2-1
*	Author: Vikram
*
*	Write a Java program to create List containing list of items
*	of type String and use for-each loop to print the items of the
*	list.
*/
public class ListInterfaceExample1 {

public static void main(String[] args) {
// TODO Auto-generated method stub List<String> mylist=new ArrayList<String>(); mylist.add("Prakash");
mylist.add("Suresh"); mylist.add("Ramesh"); mylist.add("Jayesh");

for(String item: mylist) { System.out.println(item);
}
}
}

Output :
Prakash
Suresh 
Ramesh 
Jayesh

import java.util.ArrayList; import java.util.Collections; import java.util.Iterator; import java.util.List;
/*
*	Write a Java program to create List containing list of items
*	and use List Iterator interface to print items present in the
*	list. Also print the list in reverse/ backward direction.
*/
public class ListInterfaceRevFor {

public static void main(String[] args) {
// TODO Auto-generated method stub
List<Integer> numberlist=new ArrayList<Integer>();
//Generating list of 10 numbers
for(int i=1;i<=10;i++) numberlist.add(i);
// printing the list using iterator Iterator<Integer> itr=numberlist.iterator(); while(itr.hasNext())
{
System.out.println(itr.next());

}
// printing the list using iterator in reverse order System.out.println("Reverse order"); Collections.reverse(numberlist);
Iterator<Integer> itr2=numberlist.iterator();
while(itr2.hasNext())
{
System.out.println(itr2.next());

}
}

}

Output
1
2
3
4
5
6
7
8
9
10
Reverse order 10
9
8
7
6
5
4
3
2
1