Java read display txt content (Swing)

Java read display txt content (Swing), JTextArea

 Public classTxtswingextendsJFrame {PrivateJTextArea Textareaoutput;  PublicTxtswing ()throwsIOException {Super("TXT");        Setdefaultcloseoperation (Exit_on_close); Getcontentpane (). setlayout (Newjava.awt.FlowLayout ()); Textareaoutput=NewJTextArea ("111", 45, 80);        Textareaoutput.setselectedtextcolor (color.red); Textareaoutput.setlinewrap (true);//Activate the line wrap featureTextareaoutput.setwrapstyleword (true);//Activate break word functionBufferedReader reader =NewBufferedReader (NewFileReader ("Test.txt")); String Str=Reader.readline (); String End=NULL;  while(str! =NULL) ) {End= end + str + "\ n"; STR=Reader.readline ();        } textareaoutput.settext (end);        Getcontentpane (). Add (Textareaoutput); SetSize (1024, 768); }    /**     * @paramargs *@throwsIOException*/     Public Static voidMain (string[] args)throwsIOException {txtswing TM=Newtxtswing (); Tm.setvisible (true); }}

Java read display txt content (Swing)