java - Splitting a string and extracting specific strings to array -

this question has answer here:

• how split string in java 28 answers

i having string "s".only substrings in single quotes must assigned string array.its may not necessary alternate words in single quotes.

string s = "username 'user1'              username2 'user2'              usermane3 'user3' 'user4'"; 

it must assigned below (only substrings single quotes)

 string username[] ={'user','user1','user2','user4'}; 

what tried

 string s1 = s.replace(system.getproperty("line.separator"), " ");    //replacing newline single space  string username[] = s1.split(" ");   //separating string sub-string  username[]={username,'user1',username2,'user2',username3, 'user3','user4'}; 

you split input using delimiter , take alternate strings.

string s = "username 'user1' username2 'user2 user21' usermane3 'user3'"; string[] tokens = s.split("'");//use delimiter ' value inside quote string[] usernames = new string[tokens.length / 2]; (int = 1, k = 0; < tokens.length; += 2) {     system.out.println(tokens[i]);     usernames[k++] = tokens[i]; } 

---

if there no rule single username have single user1 like

string s = "username 'user1' username2 'user2' usermane3 'user3' 'user4'"; 

you use logic strings in quotes below.

string s = "username 'user1' username2 'user2' usermane3 'user3' 'user4'"; arraylist<string> words = new arraylist(); string word = ""; boolean startquote = false; (int = 0; < s.length(); ++i) {     char ch = s.charat(i);     if (ch == '\'') {         if (word.equals(""))             startquote = true;         else {             words.add(word);             word = "";             startquote = false;             }         }     else if (startquote) {         word += ch;     } } system.out.println(words);