Java 数组遍历

Posted 2020-09-19 羊羊羊

ArrayList<Integer> al = new ArrayList<Integer>();
//数组定义

//遍历数组：
int sum = 0;
Iterator<Integer> itr = al.iterator();
while(itr.hasNext()){
    Integer intObj = (Integer)itr.next();
    sum += intObj.intValue();
}