Java中的二维字符串数组

Question

I am new to java please help me with this issue.
I have a string lets say

adc|def|efg||hij|lmn|opq

now i split this string and store it in an array using

String output[] = stringname.split("||");

now i again need to split that based on '|' and i need something like

arr[1][]=adc,arr[2][]=def
and so on so that i can access each and every element. something like a 2 dimensional string array. I heard this could be done using Arraylist , but i am not able to figure it out. Please help.

Answer 1

Here is your solution except names[0][0]="adc", names[0][1]="def" and so on:

String str = "adc|def|efg||hij|lmn|opq";
String[] obj = str.split("\\|\\|");
    int i=0;
    String[][] names = new String[obj.length][]; 

    for(String temp:obj){
        names[i++]=temp.split("\\|");

    }
List<String[]> yourList = Arrays.asList(names);// yourList will be 2D arraylist.
System.out.println(yourList.get(0)[0]); // This will print adc.
System.out.println(yourList.get(0)[1]); // This will print def.
System.out.println(yourList.get(0)[2]); // This will print efg.
               // Similarly you can fetch other elements by yourList.get(1)[index]

Answer 2

What you can do is:

String str[]="adc|def|efg||hij|lmn|opq".split("||");
String str2[]=str[0].split("|");
str2 will be containing abc, def , efg
// arrays have toList() method like:

Arrays.asList(any_array);

Answer 3

Can hardly understand your problem...

I guess you may want to use a 2-dimenison ArrayList : ArrayList<ArrayList<String>>

String input = "adc|def|efg||hij|lmn|opq";
ArrayList<ArrayList<String>> res = new ArrayList<ArrayList<String>>();
for(String strs:input.split("||")){
    ArrayList<String> strList = new ArrayList<String>();
    for(String str:strs.split("|"))
        strList.add(str);
    res.add(strList);
}