遍历ArrayList[duplicate]

Question

Iterator<String[]> iterator = list.iterator();
                while (iterator.hasNext()) {
                    String trip = "Till: " + iterator.next(0) + " | Från: " + list.get(4) + " | Kostar: " + list.get(1) +"kr | Avgår: " + list.get(2) + " | Ankomst Tid: " + list.get(3) + " | Antal bokningar: " + list.get(4);

for each row
 system.out.println(String[2] +String[5]);

Answer 1

这是因为您有一个数组列表，而不是字符串列表。

List<String[]> list = //some data
for (String[] array : list){
    System.out.println(array[3] + ":" + array[5]);
}

如果要迭代每个字符串，则必须迭代两次。

List<String[]> list = //some data
for (String[] array : list){
    for (String s : array){
        System.out.println(s);
    }
}

编辑

List<String[]> list = //some data
Iterator<String[]> itr = list.iterator();
while (itr.hasNext()){
    String[] array = itr.next(); // You were just missing saving the value for reuse
    System.out.println(array[3] + ":" + array[5]);
}