listiteratordemo.java

来自「Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号」· Java 代码 · 共 31 行

import java.util.*;

public class ListIteratorDemo {
	public static void main(String[] args) {
		List list = new ArrayList();
		
		for(int i=1; i<5; i++){
			list.add(new Integer(i));
		}
		System.out.println("The original list : "+list);
		
		ListIterator listIter = list.listIterator();
		listIter.add(new Integer(0));
		System.out.println("After add at beginning:"+list);

		if ( listIter.hasNext() ) {
			int i = listIter.nextIndex();
			listIter.next();
			listIter.set(new Integer(9));
			System.out.println("After set at "+i+":"+list);
		}
	
		if ( listIter.hasNext() ) {
			int i = listIter.nextIndex();
			listIter.next();
			listIter.remove();
			System.out.println("After remove at "+i+" : "+list);	
		}		
	}
}