int *a; //a pointer to an integer
int **a; //a pointer to a pointer to an integer
int *a[10]; //an array of 10 pointer to integers
int (*a)[10]; //a pointer to an array of 10 integers
int
一、集合的3种遍历形式
import java.util.*;
class ForTest
{public static void main(String[] args) {List list = new ArrayList();list.add(1);list.add(2);list.add(3);for(Integer str: list
