Java语言中姐种遍历List的方法总结

遍历 List 的方法: 
1. for 
2. advanced for 
3. Iterator 
4. while 
5. ListIterator 

List<E> list 

1. for 
for (int i = 0; i < list.size(); i++) { 
    E element = list.get(i); 
} 

2. advanced for 
for (E element : list) { 

} 

3. Iterator 
for (Iterator<E> iter = list.iterator(); iter.hasNext(); ) { 
    E element = iter.next(); 
} 

4. while 
while (i < list.size()) { 
    E element = list.get(i);     
    i++; 
} 

5. ListIterator 
for (ListIterator<E> iterator = list.listIterator(); iterator.hasNext(); ) { 
    E element = iterator.next(); 
}

　　

Java遍历List四种方法的效率对比