Java Collection Iterator

A Java Collection Iterator is a Collection Iterator expressed as a Java statement.

• See: Java Collection Data Structure, Collection Iterator, Iterator, hasNext().

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References

2011

• Example

import java.math.BigDecimal;
import java.util.List;
import java.util.Iterator;
import java.util.ArrayList;

public class TestIteration {

	 public static void main(String[] args) {

		List<BigDecimal> vals = new ArrayList<BigDecimal>();

		vals.add(new BigDecimal(2.4));
		vals.add(0, new BigDecimal(3.7)); // insert at the head
		vals.add(0, new BigDecimal(7.0));

		Iterator<BigDecimal> iter = vals.iterator();

		while (iter.hasNext()) {System.out.println(iter.next()) ;}
			
		performTask(iter) ;
	}
	 
	 static void performTask (Iterator<BigDecimal> iter) {
		 while (iter.hasNext()) {
			 System.out.println(iter.next()) ; 
		 } 
	 }

}

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