java.util.scanner - Java: Scanner stopping at new line -

i trying scan through text files , add them map, map , working. however, scanner seems stopping when comes 'enter' in text file, or blank line. problem

here block of code scanner/mapper

class onebuttonlistener implements actionlistener {     @override     public void actionperformed(actionevent evt)     {         final jfilechooser onefc = new jfilechooser();         onefc.showopendialog(analysisframe.this);         string newline = null;         onefc.getname(null);         int returnval = 0;         file fileone = onefc.getselectedfile();          scanner input = null;                 try {             input = new scanner(fileone);         }          catch (filenotfoundexception ex) {             logger.getlogger(analysisframe.class.getname()).log(level.severe, null,                             ex);         }                                inputtext = input.nextline();          string[] words = inputtext.split("[ \n\t\r,.;:!?(){}]");          for(int = 0; < words.length; i++){             key = words[i].tolowercase();               if (words[i].length() > 1){                 if (mapone.get(key) == null){                     mapone.put(key, 1);                 }                 else {                     value1 = mapone.get(key).intvalue();                     value1++;                     apone.put(key, value1);                 }             }           }      } } 

thanks help!

you should scan inside loop until reaches end of file, example:

stringbuilder builder = new stringbuilder(); while(input.hasnextline()){     builder.append(input.nextline());     builder.append(" "); // might not necessary } string inputtext = builder.tostring(); 

an alternative using split use delimiter scanner , use hasnext() , next() instead of hasnextline() , nextline(). try out, see if works.

for example:

scanner.usedelimiter("[ \n\t\r,.;:!?(){}]"); arraylist<string> tokens = new arraylist<string>(); while(scanner.hasnext()){     tokens.add(scanner.next()); }  string[] words = tokens.toarray(new string[0]); // optional 

also on side note, it's not necessary create jfilechooser everytime:

class onebuttonlistener implements actionlistener {     private final jfilechooser onefc = new jfilechooser();      @override     public void actionperformed(actionevent evt)     {