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ListTest.java
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ListTest.java
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package Idea;
import java.util.*;
import java.util.ListIterator;
public class ListTest {
public static void main(String args[]){
List<String> l1 = new ArrayList<String>();
Set<String> all = new HashSet<>();
Scanner sc = new Scanner(System.in);
String str = sc.next();
l1.add(str);
l1.add(str);
l1.add(str);
all.add("GKD");
all.add("WSL");
System.out.println(all);
Iterator<String> iter = l1.listIterator();
while(iter.hasNext()){
System.out.println(iter.next());
}
ListIterator<String> listIterator = (ListIterator<String>) l1.iterator();
while(listIterator.hasNext()){
System.out.println(listIterator.next());
}
while(listIterator.hasPrevious()){
System.out.println(listIterator.previous());
}
}
}