Iterator Java Loop
In this part of the tutorial we will learn to use all the loops .We will create an example to display the content of the arraylist.
In this part of the tutorial we will learn to use all the loops .We will create an example to display the content of the arraylist.
- With iterator all three loops can be used.
- While, dowhile, and for loop is easy to use with iterator.
Example Java Loop Iterator
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class loop {
public static void main(String[] args) {
List l = new ArrayList();
for (int i = 1; i < 6; i++) {
l.add(i);
}
Iterator it = l.iterator();
System.out.println("while loop");
while (it.hasNext()) {
System.out.print(it.next() + "\t");
}
Iterator it1 = l.iterator();
System.out.println("\ndo .. while");
do {
System.out.print(it1.next() + "\t");
} while (it1.hasNext());
Iterator it2 = l.iterator();
System.out.println("\nfor loop");
for (; it2.hasNext();) {
System.out.print(it2.next() + "\t");
}
}
}
Output :
while loop 1 2 3 4 5 do .. while 1 2 3 4 5 for loop 1 2 3 4 5
